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Plan de estudios de 2.º grado

Un año escolar completo de 180 días en 5 materias: Lectura, Escritura, Matemáticas, Ciencias básicas y Estudios sociales. Abajo encontrarás cada unidad y cada lección. La Unidad 1 de cada curso es gratis, y KidUniversity Plus desbloquea el resto para toda tu familia.

  • 5 materias
  • 99 unidades
  • 805 lecciones
  • 95 pruebas de unidad

Los títulos de las unidades y lecciones aparecen aquí en inglés. Las lecciones están disponibles en español dentro de la app: toca 🌐 para cambiar de idioma cuando quieras.

Lectura

25 unidades · 155 lecciones · 25 pruebas de unidad · 180 días de clase

Prueba gratis la Unidad 1
Unidad 1GRATIS

Word Power

4 lecciones + prueba de unidad

How can we figure out new words?
  1. Vowel Teams
  2. Compound Words
  3. Prefixes un- and re-
  4. Contractions
  5. Unit 1 Test: Word Power
Unidad 2

Stories

4 lecciones + prueba de unidad

What makes a story a story?
  1. Characters and Setting
  2. Beginning, Middle and End
  3. The Lesson of a Story
  4. Retelling a Story
  5. Unit 2 Test: Stories
Unidad 3

Facts and Information

4 lecciones + prueba de unidad

How do we learn facts from what we read?
  1. Main Topic
  2. Text Features
  3. Asking and Answering Questions
  4. Pictures and Diagrams
  5. Unit 3 Test: Facts and Information
Unidad 4

Words and Meaning

4 lecciones + prueba de unidad

How do words help us picture and understand?
  1. Context Clues
  2. Words That Show Feelings
  3. Comparing Two Stories
  4. Opposites
  5. Unit 4 Test: Words and Meaning
Unidad 5

Poems and Rhymes

4 lecciones + prueba de unidad

What makes a poem fun to read aloud?
  1. Rhyming Words
  2. Rhythm and Repeating Lines
  3. Sense Words in Poems
  4. Poems and Stories
  5. Unit 5 Test: Poems and Rhymes
Unidad 6

Fables and Folktales

4 lecciones + prueba de unidad

What can old stories teach us?
  1. What Is a Folktale?
  2. Tricksters
  3. Problem and Solution
  4. Same Tale, Different Places
  5. Unit 6 Test: Fables and Folktales
Unidad 7

How-To and Science Texts

4 lecciones + prueba de unidad

How do texts teach us to do things and explain the world?
  1. Following Steps
  2. Why Things Happen
  3. Key Details
  4. Comparing Two Texts
  5. Unit 7 Test: How-To and Science Texts
Unidad 8

Real People, Real Lives

4 lecciones + prueba de unidad

What can we learn from the lives of real people?
  1. What Is a Biography?
  2. Time Order in a Life
  3. Traits of Real People
  4. Why Authors Write
  5. Unit 8 Test: Real People, Real Lives
Unidad 9

Sounds and Syllables

9 lecciones + prueba de unidad

How can breaking words into parts help us read?
  1. Short and Long Vowels
  2. Two-Syllable Words
  3. Splitting Words Between Consonants
  4. Words With r-Controlled Vowels
  5. Vowel Sounds ow and oi
  6. Silent Letters kn and wr
  7. Soft c and Soft g
  8. Reading With Expression
  9. Reading Smoothly With Punctuation
  10. Unit 9 Test: Sounds and Syllables
Unidad 10

Story Characters Up Close

9 lecciones + prueba de unidad

How do characters handle big challenges?
  1. Characters Facing a Challenge
  2. How a Character Responds
  3. Character Voices
  4. Who Is Talking?
  5. Feelings Through Actions
  6. Clues in Story Pictures
  7. Asking Who, What and Where
  8. Asking Why and How in Stories
  9. Characters Who Change
  10. Unit 10 Test: Story Characters Up Close
Unidad 11

Main Topic and Paragraphs

6 lecciones + prueba de unidad

How do paragraphs work together to teach us?
  1. Main Topic of Each Paragraph
  2. Main Topic of a Whole Text
  3. Connecting Steps in a Process
  4. Using Headings to Find Facts
  5. Bold Words and Glossaries
  6. Using a Table of Contents
  7. Unit 11 Test: Main Topic and Paragraphs
Unidad 12

Word Builders

7 lecciones + prueba de unidad

How do word parts change what a word means?
  1. Suffixes -ful and -less
  2. Suffixes -er and -est
  3. Suffixes -ly and -y
  4. Root Words
  5. Prefixes and Suffixes Together
  6. Using a Dictionary
  7. Shades of Meaning
  8. Unit 12 Test: Word Builders
Unidad 13

Fables With a Message

7 lecciones + prueba de unidad

What lessons do fables teach us?
  1. Theme in Fables
  2. The Central Message
  3. Animal Characters in Fables
  4. Recounting a Fable
  5. Fables From Many Lands
  6. Cause and Effect in a Fable
  7. Comparing Two Fables
  8. Unit 13 Test: Fables With a Message
Unidad 14

Authors and Their Reasons

6 lecciones + prueba de unidad

Why do authors write what they write?
  1. Author's Purpose: Answer, Explain, Describe
  2. Reasons That Support a Point
  3. Finding the Author's Point
  4. Learning From Images
  5. What Diagrams Show
  6. Telling Facts From Opinions
  7. Unit 14 Test: Authors and Their Reasons
Unidad 15

Story Structure

6 lecciones + prueba de unidad

How do the parts of a story fit together?
  1. How a Story Begins
  2. How a Story Ends
  3. The Problem in a Story
  4. The Turning Point
  5. Sequence Words in Stories
  6. Settings That Matter
  7. Unit 15 Test: Story Structure
Unidad 16

One Story, Many Versions

6 lecciones + prueba de unidad

How can one story be told in different ways?
  1. Different Versions of a Story
  2. Cinderella Around the World
  3. Comparing Characters in Two Versions
  4. Comparing Settings in Two Versions
  5. Comparing Endings
  6. Point of View in Fairy Tales
  7. Unit 16 Test: One Story, Many Versions
Unidad 17

Animals and Nature Texts

6 lecciones + prueba de unidad

How do texts help us learn about the natural world?
  1. Main Topic in Animal Texts
  2. Key Details About Habitats
  3. Steps in a Life Cycle
  4. Science Words in Context
  5. Comparing Two Animal Texts
  6. Answering With Text Evidence
  7. Unit 17 Test: Animals and Nature Texts
Unidad 18

Songs, Poems and Word Play

7 lecciones + prueba de unidad

How do sounds make words fun?
  1. Alliteration
  2. Repeated Sounds
  3. Rhythm in Songs
  4. Poems That Tell Stories
  5. Shape Poems
  6. Reading Poems Fluently
  7. Word Play and Riddles
  8. Unit 18 Test: Songs, Poems and Word Play
Unidad 19

Then and Now

7 lecciones + prueba de unidad

How do texts teach us about the past and our community?
  1. Who, What and When in History
  2. Reading a Timeline
  3. Comparing Then and Now
  4. Learning From Old Photos
  5. Connecting Events in Order
  6. Reasons in History Texts
  7. Two Texts About One Event
  8. Unit 19 Test: Then and Now
Unidad 20

Fluency and Tricky Words

7 lecciones + prueba de unidad

How do strong readers read smoothly and correctly?
  1. Irregularly Spelled Words
  2. Tricky Vowel Teams
  3. Long Words With Suffixes
  4. Reading at the Right Speed
  5. Self-Correcting With Context
  6. Reading Dialogue Aloud
  7. Phrasing and Pausing
  8. Unit 20 Test: Fluency and Tricky Words
Unidad 21

Quarter 4 Review 1

8 lecciones + prueba de unidad

How much do you remember from this year?
  1. Review Day 1: Reread "Fire Trucks"
  2. Review Day 2: Reread "The Kite Contest"
  3. Review Day 3: Reread "Wilma Rudolph"
  4. Review Day 4: Reread "At the Fair"
  5. Review Day 5: Reread "Polar Bears in the Arctic"
  6. Review Day 6: Reread "A Bridge for Beetle"
  7. Review Day 7: Reread "The Boy Who Cried Wolf"
  8. Review Day 8: Reread "The Enormous Pumpkin"
  9. Unit 21 Test: Quarter 4 Review 1
Unidad 22

Quarter 4 Review 2

8 lecciones + prueba de unidad

How much do you remember from this year?
  1. Review Day 9: Reread "Rain Song"
  2. Review Day 10: Reread "Snake Poem"
  3. Review Day 11: Reread "How to Plant a Seed"
  4. Review Day 12: Reread "Goldilocks, Forest and City"
  5. Review Day 13: Reread "Landing on the Moon"
  6. Review Day 14: Reread "The First Airplane Flight"
  7. Review Day 15: Reread "Main Street, Then and Now"
  8. Review Day 16: Reread "First Day"
  9. Unit 22 Test: Quarter 4 Review 2
Unidad 23

Quarter 4 Review 3

8 lecciones + prueba de unidad

How much do you remember from this year?
  1. Review Day 17: Reread "Penguins"
  2. Review Day 18: Reread "The Dog and His Reflection"
  3. Review Day 19: Reread "Toby Reads Too Fast"
  4. Review Day 20: Reread "The Ant and the Dove"
  5. Review Day 21: Reread "The Troll Tells His Side"
  6. Review Day 22: Reread "Busy Squirrels"
  7. Review Day 23: Reread "The Kitten and the Yarn"
  8. Review Day 24: Reread "Kate's Kite"
  9. Unit 23 Test: Quarter 4 Review 3
Unidad 24

Quarter 4 Review 4

8 lecciones + prueba de unidad

How much do you remember from this year?
  1. Review Day 25: Reread "Octopuses"
  2. Review Day 26: Reread "Two Tales"
  3. Review Day 27: Reread "March Along"
  4. Review Day 28: Reread "Volcanoes"
  5. Review Day 29: Reread "The Spilled Paint"
  6. Review Day 30: Reread "The Bus Ride"
  7. Review Day 31: Reread "Theo's Trick"
  8. Review Day 32: Reread "Two Cinderellas"
  9. Unit 24 Test: Quarter 4 Review 4
Unidad 25

Quarter 4 Review 5

8 lecciones + prueba de unidad

How much do you remember from this year?
  1. Review Day 33: Reread "The Spelling Bee"
  2. Review Day 34: Reread "Rainy Recess"
  3. Review Day 35: Reread "The Rain Train"
  4. Review Day 36: Reread "Jada's Cleanup Game"
  5. Review Day 37: Reread "All About Owls"
  6. Review Day 38: Reread "Busy Beavers"
  7. Review Day 39: Reread "How Maple Grove Got a Park"
  8. Review Day 40: Reread "Riddles and Giggles"
  9. Unit 25 Test: Quarter 4 Review 5

Escritura

22 unidades · 158 lecciones · 22 pruebas de unidad · 180 días de clase

Prueba gratis la Unidad 1
Unidad 1GRATIS

Building Sentences

4 lecciones + prueba de unidad

What makes a sentence complete?
  1. Complete Sentences
  2. Capitals and End Marks
  3. Telling, Asking and Exclaiming
  4. Expanding Sentences
  5. Unit 1 Test: Building Sentences
Unidad 2

Nouns, Verbs and Adjectives

4 lecciones + prueba de unidad

What jobs do words do?
  1. Plural Nouns
  2. Verbs in the Past
  3. Describing With Adjectives
  4. Pronouns
  5. Unit 2 Test: Nouns, Verbs and Adjectives
Unidad 3

Writing a Story

4 lecciones + prueba de unidad

How do writers tell a story in order?
  1. Beginning, Middle and End
  2. Time-Order Words
  3. Showing Feelings
  4. Writing a Strong Ending
  5. Unit 3 Test: Writing a Story
Unidad 4

Opinions and Facts

4 lecciones + prueba de unidad

How do we share what we think and know?
  1. Writing an Opinion
  2. Writing to Teach Facts
  3. Linking Words
  4. Revising: Adding Details
  5. Unit 4 Test: Opinions and Facts
Unidad 5

Spelling Patterns

4 lecciones + prueba de unidad

How do patterns help us spell?
  1. Silent e
  2. Blends and Digraphs
  3. Adding -ing and -ed
  4. Tricky Words
  5. Unit 5 Test: Spelling Patterns
Unidad 6

Letters and Notes

4 lecciones + prueba de unidad

How do we write to people we know?
  1. Parts of a Friendly Letter
  2. Thank-You Notes
  3. Commas in Dates and Letters
  4. Writing an Invitation
  5. Unit 6 Test: Letters and Notes
Unidad 7

Writing About Reading

4 lecciones + prueba de unidad

How can we share what we think about books?
  1. Retelling in Writing
  2. My Favorite Part
  3. Comparing Two Books
  4. Writing to a Character
  5. Unit 7 Test: Writing About Reading
Unidad 8

Research and Sharing

4 lecciones + prueba de unidad

How do writers find facts and share them?
  1. Asking Research Questions
  2. Finding Facts
  3. Taking Notes
  4. Publishing Your Writing
  5. Unit 8 Test: Research and Sharing
Unidad 9

More About Nouns

9 lecciones + prueba de unidad

How do nouns name people, places, groups and more?
  1. Collective Nouns
  2. Irregular Plurals
  3. Proper Nouns
  4. Capitalizing Holidays
  5. Capitalizing Place Names
  6. Capitalizing Product Names
  7. Possessive Nouns
  8. Compound Words
  9. Choosing Exact Nouns
  10. Unit 9 Test: More About Nouns
Unidad 10

Pronouns and Verbs

9 lecciones + prueba de unidad

How do pronouns and verbs work together?
  1. Reflexive Pronouns
  2. Irregular Past Verbs
  3. Is and Are
  4. Was and Were
  5. Has and Have
  6. Verbs That Pop
  7. Present Tense Verbs
  8. Helping Verbs
  9. Matching Subjects and Verbs
  10. Unit 10 Test: Pronouns and Verbs
Unidad 11

Adjectives and Adverbs

9 lecciones + prueba de unidad

How do describing words help readers picture things?
  1. Adjectives for Size and Color
  2. Adjectives That Compare
  3. Adverbs That Tell How
  4. Adverbs That Tell When
  5. Adjective or Adverb?
  6. Sense Words in Writing
  7. Shades of Meaning
  8. Adding Adjectives to Sentences
  9. Describing a Place
  10. Unit 11 Test: Adjectives and Adverbs
Unidad 12

Opinion Writing

9 lecciones + prueba de unidad

How do we tell what we think and why?
  1. Stating Your Opinion
  2. Giving Reasons
  3. Using Because
  4. Using Also and And
  5. Opinion About a Book
  6. Opinion About a Place
  7. Opinion Closing Sentences
  8. Revising an Opinion
  9. Opinion Letters
  10. Unit 12 Test: Opinion Writing
Unidad 13

How-To and Informative Writing

9 lecciones + prueba de unidad

How do we teach readers something new?
  1. Introducing a Topic
  2. Facts About a Topic
  3. Writing Steps in Order
  4. First, Next, Last
  5. Writing a How-To
  6. All About Animals
  7. Using Pictures and Labels
  8. Concluding Sentences
  9. Revising for Clear Facts
  10. Unit 13 Test: How-To and Informative Writing
Unidad 14

Simple and Compound Sentences

9 lecciones + prueba de unidad

How can we join ideas in one sentence?
  1. Simple Sentences
  2. Compound Sentences With And
  3. Compound Sentences With But
  4. Compound Sentences With Or
  5. Rearranging Sentences
  6. Combining Short Sentences
  7. Fixing Run-On Sentences
  8. Starting Sentences in New Ways
  9. Commas in a Series
  10. Unit 14 Test: Simple and Compound Sentences
Unidad 15

Midyear Review

9 lecciones + prueba de unidad

How do our writing tools fit together?
  1. Review: Sentences
  2. Review: Nouns and Pronouns
  3. Review: Verbs
  4. Review: Adjectives and Adverbs
  5. Review: Capital Letters
  6. Review: Story Order
  7. Review: Opinions
  8. Review: Spelling
  9. Review: Commas
  10. Unit 15 Test: Midyear Review
Unidad 16

Personal Narratives

9 lecciones + prueba de unidad

How do we write about things that happened to us?
  1. Choosing a Small Moment
  2. Telling Events in Order
  3. Adding Actions
  4. Adding Thoughts
  5. Adding Words Characters Say
  6. Describing the Setting
  7. Writing a Hook
  8. Closing a Narrative
  9. Revising a Narrative
  10. Unit 16 Test: Personal Narratives
Unidad 17

Apostrophes and Commas

9 lecciones + prueba de unidad

How do little marks make a big difference?
  1. Apostrophes in Contractions
  2. Apostrophes for Ownership
  3. Commas in Greetings
  4. Commas in Closings
  5. Commas Between City and State
  6. Contractions With Not
  7. Contractions With Will
  8. Its or It's?
  9. Proofreading Punctuation
  10. Unit 17 Test: Apostrophes and Commas
Unidad 18

Word Detectives

9 lecciones + prueba de unidad

How can we figure out and spell new words?
  1. Adding un- and re-
  2. Root Words
  3. Compound Word Meanings
  4. Using a Dictionary
  5. Using a Glossary
  6. Spelling Vowel Teams
  7. Spelling Long Vowels
  8. Adding -s and -es
  9. Formal and Informal Words
  10. Unit 18 Test: Word Detectives
Unidad 19

Research Together

9 lecciones + prueba de unidad

How do writers work together and use tools?
  1. Typing a Sentence
  2. Writing With a Partner
  3. Shared Research Projects
  4. Recalling What You Know
  5. Gathering Facts From Books
  6. Making a Fact Chart
  7. Writing a Short Report
  8. Adding Pictures to Writing
  9. Sharing Writing Online Safely
  10. Unit 19 Test: Research Together
Unidad 20

Poems and Creative Writing

9 lecciones + prueba de unidad

How can we play with words?
  1. Writing a Rhyming Poem
  2. Writing an Acrostic
  3. Sense Poems
  4. Writing a Riddle
  5. Writing a Fairy Tale
  6. Inventing a Character
  7. Writing a Fable
  8. Writing a Comic Strip
  9. Writing a Silly Story
  10. Unit 20 Test: Poems and Creative Writing
Unidad 21

Editing and Revising

9 lecciones + prueba de unidad

How do writers make their work better?
  1. Rereading Your Work
  2. Taking Out Extra Words
  3. Changing Boring Words
  4. Peer Feedback
  5. Checking Capitals
  6. Checking End Marks
  7. Checking Spelling
  8. Making a Neat Copy
  9. Editing Checklist
  10. Unit 21 Test: Editing and Revising
Unidad 22

Year in Review

9 lecciones + prueba de unidad

What have we learned as writers this year?
  1. Year Review: Sentences
  2. Year Review: Parts of Speech
  3. Year Review: Stories
  4. Year Review: Opinions
  5. Year Review: Informative Writing
  6. Year Review: Punctuation
  7. Year Review: Spelling
  8. Year Review: Word Meanings
  9. Year Review: Letters
  10. Unit 22 Test: Year in Review

Matemáticas

9 unidades · 171 lecciones · 9 pruebas de unidad · 180 días de clase

Prueba gratis la Unidad 1
Unidad 1GRATIS

Adding, Subtracting, and Working with Data

20 lecciones + prueba de unidad
  1. Add and Subtract Within 20
  2. Make 10 to Add
  3. Doubles and Near Doubles
  4. Count On to Subtract
  5. Think Addition to Subtract
  6. Find the Missing Addend
  7. Fact Fluency Within 20
  8. Ways to Represent Data
  9. Sort and Count Objects
  10. Read a Picture Graph
  11. Make a Picture Graph
  12. Read a Bar Graph
  13. Make a Bar Graph
  14. Answer Questions About Graphs
  15. Diagrams to Compare
  16. How Many More?
  17. How Many Fewer?
  18. Compare with Tape Diagrams
  19. Compare Story Problems
  20. Solve Put-Together Problems with Graphs
  21. Unit 1 Test: Adding, Subtracting, and Working with Data
Unidad 2

Adding and Subtracting within 100

23 lecciones + prueba de unidad
  1. Add and Subtract
  2. Add Tens and Ones
  3. Add with Base-Ten Blocks
  4. Add by Making a New Ten
  5. Subtract Tens and Ones
  6. Subtract Without Trading
  7. Choose an Addition Strategy
  8. Add Up to Four Two-Digit Numbers
  9. Decompose to Subtract
  10. Trade a Ten for Ten Ones
  11. Subtract with a Trade
  12. Show Decomposing on a Drawing
  13. Subtract by Counting Back Tens
  14. Subtract by Adding Up
  15. Compare Subtraction Strategies
  16. Check Subtraction with Addition
  17. Represent and Solve Story Problems
  18. Add-To Story Problems
  19. Take-From Story Problems
  20. Unknown Start Problems
  21. Compare Story Problems Within 100
  22. Write Equations for Stories
  23. Two-Step Story Problems
  24. Unit 2 Test: Adding and Subtracting within 100
Unidad 3

Measuring Length

19 lecciones + prueba de unidad
  1. Metric Measurement
  2. Measure with Same-Size Units
  3. Measure in Centimeters
  4. Use a Centimeter Ruler
  5. Measure in Meters
  6. Estimate Lengths
  7. Compare Lengths in Centimeters
  8. Customary Measurement
  9. Measure in Inches
  10. Feet and Yards
  11. Choose the Right Tool
  12. Same Length, Different Units
  13. Length Story Problems
  14. Line Plots
  15. Collect Length Data
  16. Make a Line Plot
  17. Read a Line Plot
  18. Answer Questions from Line Plots
  19. Length Problems with Tape Diagrams
  20. Unit 3 Test: Measuring Length
Unidad 4

Addition and Subtraction on the Number Line

16 lecciones + prueba de unidad
  1. The Structure of the Number Line
  2. Make a Number Line
  3. Equal Spaces on a Number Line
  4. Label Numbers on a Number Line
  5. Whole Numbers as Lengths
  6. Find Numbers on a Number Line
  7. Compare Numbers on a Number Line
  8. Add and Subtract on a Number Line
  9. Add on a Number Line
  10. Subtract on a Number Line
  11. Jump by Tens
  12. Jump to a Friendly Ten
  13. Find Unknown Change on a Number Line
  14. Number Line Story Problems
  15. Show Equations on a Number Line
  16. Add and Subtract Lengths on the Line
  17. Unit 4 Test: Addition and Subtraction on the Number Line
Unidad 5

Numbers to 1,000

17 lecciones + prueba de unidad
  1. The Value of Three Digits
  2. Meet the Hundred
  3. Hundreds, Tens, and Ones
  4. Build Numbers with Base-Ten Blocks
  5. Read and Write Three-Digit Numbers
  6. Expanded Form
  7. Number Names to 1,000
  8. Count by 5s, 10s, and 100s
  9. Many Ways to Make a Number
  10. Compare and Order Numbers within 1,000
  11. Compare with Base-Ten Blocks
  12. Use >, =, and <
  13. Three-Digit Numbers on a Number Line
  14. Order Three-Digit Numbers
  15. Compare Numbers in Expanded Form
  16. 10 More, 10 Less, 100 More, 100 Less
  17. Find the Greatest and Least
  18. Unit 5 Test: Numbers to 1,000
Unidad 6

Geometry, Time, and Money

27 lecciones + prueba de unidad
  1. Attributes of Shapes
  2. Sort Shapes by Sides
  3. Triangles, Quadrilaterals, Pentagons, Hexagons
  4. Count Angles in Shapes
  5. Draw Shapes with Given Sides
  6. Faces of Cubes and Solids
  7. Partition Rectangles into Squares
  8. Halves, Thirds, and Fourths
  9. Split Shapes into Equal Parts
  10. Name Halves
  11. Name Thirds and Fourths
  12. Equal Shares Can Look Different
  13. A Whole Is Two Halves
  14. Time on the Clock
  15. Hour Hand and Minute Hand
  16. Tell Time to the Hour and Half Hour
  17. Quarter Past and Quarter To
  18. Tell Time to 5 Minutes
  19. A.M. and P.M.
  20. Digital and Analog Clocks
  21. The Value of Money
  22. Pennies, Nickels, Dimes, and Quarters
  23. Count Coins
  24. Dollar Bills
  25. Count Mixed Money
  26. Money Story Problems
  27. Use $ and ¢ Symbols
  28. Unit 6 Test: Geometry, Time, and Money
Unidad 7

Adding and Subtracting within 1,000

23 lecciones + prueba de unidad
  1. Add and Subtract within 1,000 without Composition or Decomposition
  2. Add Hundreds, Tens, and Ones
  3. Subtract Without Trading Within 1,000
  4. Add 10 or 100 Mentally
  5. Subtract 10 or 100 Mentally
  6. Count On by Hundreds
  7. Add within 1,000 using Place Value Strategies
  8. Compose a Ten When Adding
  9. Compose a Hundred When Adding
  10. Add Three-Digit Numbers with Drawings
  11. Add Using Expanded Form
  12. Add on an Open Number Line
  13. Add Three-Digit Numbers in Columns
  14. Explain Why Addition Strategies Work
  15. Subtract within 1,000 using Place Value Strategies
  16. Decompose a Ten to Subtract
  17. Decompose a Hundred to Subtract
  18. Subtract with Base-Ten Drawings
  19. Subtract Across Zeros
  20. Subtract by Counting Up Within 1,000
  21. Subtract in Columns
  22. Check Your Subtraction
  23. Three-Digit Story Problems
  24. Unit 7 Test: Adding and Subtracting within 1,000
Unidad 8

Equal Groups

15 lecciones + prueba de unidad
  1. Odd and Even
  2. Pairs and Leftovers
  3. Is It Odd or Even?
  4. Even Numbers as Doubles
  5. Count by 2s
  6. Odd and Even Patterns
  7. Sums of Two Equal Addends
  8. Rectangular Arrays
  9. Build Rectangular Arrays
  10. Rows and Columns
  11. Add Rows to Find the Total
  12. Add Columns to Find the Total
  13. Equal Groups with Repeated Addition
  14. Make Arrays up to 5 by 5
  15. Array Story Problems
  16. Unit 8 Test: Equal Groups
Unidad 9

Putting It All Together

11 lecciones + prueba de unidad
  1. Fluency Within 20 and Measurement Proyecto
  2. Fluency Facts Challenge
  3. Measure and Compare Real Objects
  4. Measurement Story Problems Review
  5. Numbers to 1,000 Proyecto
  6. Place Value Puzzles
  7. Number Line Games to 1,000
  8. Compare and Order Review
  9. Create and Solve Story Problems Proyecto
  10. Write Your Own Story Problem
  11. Solve a Classmate's Story Problem
  12. Unit 9 Test: Putting It All Together

Ciencias básicas

19 unidades · 165 lecciones · 15 pruebas de unidad · 180 días de clase

Prueba gratis la Unidad 1
Unidad 1GRATIS

Earth: Land Changing Shape

3 lecciones

Why does land wear away, and how can we slow it down?
  1. Rocks Break Into Pieces
  2. Water and Wind Move Land
  3. Slowing Erosion
Unidad 2

Structure & Properties of Matter

3 lecciones

What are things made of, and how do we pick the right materials to build a toy?
  1. Describing Materials
  2. Picking the Right Material
  3. Changes You Can and Can't Undo
Unidad 3

Habitats & Biodiversity

3 lecciones

Why do different plants and animals live in different places?
  1. What Is a Habitat?
  2. Living Things Fit Their Homes
  3. Many Kinds of Life
Unidad 4

Plants

3 lecciones

What do plants need to grow, and how can they grow in so many places?
  1. What Plants Need
  2. Pollination
  3. Seeds on the Move
Unidad 5

Maps of Land and Water

11 lecciones + prueba de unidad

How can a map show us where land and water are?
  1. What Is a Map?
  2. Map Keys and Symbols
  3. Bird's-Eye View
  4. Mountains and Hills
  5. Valleys and Plains
  6. Rivers and Lakes
  7. Oceans and Seas
  8. Islands and Peninsulas
  9. Making a Classroom Map
  10. Mapping Your Neighborhood
  11. Using a Map to Find Your Way
  12. Unit 5 Test: Maps of Land and Water
Unidad 6

Where Water Is Found

10 lecciones + prueba de unidad

Where is all of Earth's water, and is it salty or fresh?
  1. Water Covers Most of Earth
  2. Salt Water and Fresh Water
  3. Frozen Water: Ice and Snow
  4. Water Under the Ground
  5. Ponds, Streams and Rivers
  6. Where Rivers Flow
  7. Water Can Be Solid or Liquid
  8. Water in the Air
  9. Saving Fresh Water
  10. Water Around Our School
  11. Unit 6 Test: Where Water Is Found
Unidad 7

Fast and Slow Earth Changes

10 lecciones + prueba de unidad

Does Earth change in a flash or little by little?
  1. Changes Take Time
  2. Quick Changes: Floods
  3. Quick Changes: Earthquakes
  4. Quick Changes: Volcanoes
  5. Slow Changes: Canyons
  6. Slow Changes: Weathering Rocks
  7. Landslides
  8. Comparing Fast and Slow
  9. Clues in the Land
  10. Timeline of a Landform
  11. Unit 7 Test: Fast and Slow Earth Changes
Unidad 8

Solids, Liquids and Gases

10 lecciones + prueba de unidad

Why do some things keep their shape while others spill or float away?
  1. What Is a Solid?
  2. What Is a Liquid?
  3. What Is a Gas?
  4. Liquids Take the Shape of Containers
  5. Air Is Something
  6. Sorting Matter
  7. Sand: Solid or Liquid?
  8. Measuring Liquids
  9. Matter Takes Up Space
  10. Matter All Around Us
  11. Unit 8 Test: Solids, Liquids and Gases
Unidad 9

Heating and Cooling Matter

10 lecciones + prueba de unidad

What happens to things when we warm them up or cool them down?
  1. Melting
  2. Freezing
  3. Heating Can Change Things
  4. Cooking Changes Food
  5. Can We Change It Back?
  6. Ice Cream Science
  7. Chocolate and Crayons
  8. Burning Is a Big Change
  9. Testing With Warm Water
  10. Safety With Heat
  11. Unit 9 Test: Heating and Cooling Matter
Unidad 10

Building With Small Pieces

10 lecciones + prueba de unidad

How can small pieces build something big?
  1. Big Things From Small Parts
  2. Blocks and Bricks
  3. Taking Things Apart
  4. Same Pieces, New Shapes
  5. Puzzles and Patterns
  6. Strong Shapes
  7. Building a Tower
  8. Pieces of a Toy
  9. Recycling Into New Things
  10. My Piece-by-Piece Build
  11. Unit 10 Test: Building With Small Pieces
Unidad 11

More on Plants

10 lecciones + prueba de unidad

How do plants grow from tiny seeds to tall stalks?
  1. Parts of a Seed
  2. Sprouting Seeds
  3. Roots Hold and Drink
  4. Stems Carry Water
  5. Leaves and Sunlight
  6. Flowers Make Seeds
  7. Fruits Hold Seeds
  8. Plant Life Cycle
  9. Plants Need Space
  10. A Plant Growing Test
  11. Unit 11 Test: More on Plants
Unidad 12

Animals That Help Plants

10 lecciones + prueba de unidad

How do animals help plants make new plants?
  1. Bees and Butterflies
  2. Birds and Bats
  3. Pollen on the Move
  4. Animals Carry Seeds
  5. Sticky and Hooked Seeds
  6. Seeds That Get Eaten
  7. Squirrels Bury Seeds
  8. Design a Pollinator Tool
  9. Helping Pollinators
  10. Partners in Nature
  11. Unit 12 Test: Animals That Help Plants
Unidad 13

Life in Water Habitats

10 lecciones + prueba de unidad

Who lives in ponds, rivers and oceans?
  1. Pond Life
  2. River Life
  3. Ocean Life
  4. Tide Pools
  5. Coral Reefs
  6. Fish Have Gills
  7. Water Plants
  8. Frogs: Water and Land
  9. Deep Sea Creatures
  10. Comparing Water Homes
  11. Unit 13 Test: Life in Water Habitats
Unidad 14

Life on Land Habitats

10 lecciones + prueba de unidad

How are deserts, forests and grasslands home to different life?
  1. Forest Life
  2. Desert Life
  3. Grassland Life
  4. Arctic Life
  5. Mountain Life
  6. Rainforest Life
  7. Underground Homes
  8. Backyard Habitats
  9. City Animals
  10. Comparing Land Homes
  11. Unit 14 Test: Life on Land Habitats
Unidad 15

Engineering: Solve a Problem

11 lecciones + prueba de unidad

How do engineers turn a problem into a great idea?
  1. What Engineers Do
  2. Ask About the Problem
  3. Imagine Many Ideas
  4. Draw a Plan
  5. Build a Model
  6. Test It Out
  7. Make It Better
  8. Compare Two Designs
  9. Design a Bridge
  10. Design a Shade
  11. Share Your Design
  12. Unit 15 Test: Engineering: Solve a Problem
Unidad 16

Rocks, Soil and Sand

10 lecciones + prueba de unidad

What is the ground under our feet made of?
  1. Looking at Rocks
  2. Sorting Rocks
  3. Rocks Get Smaller
  4. What Is Sand?
  5. What Is Soil?
  6. Soil Has Layers
  7. Living Things in Soil
  8. Mud and Clay
  9. Rocks We Use
  10. Rock Collection Project
  11. Unit 16 Test: Rocks, Soil and Sand
Unidad 17

Protecting Our Land

10 lecciones + prueba de unidad

How can people keep land and water safe from wind and water?
  1. Wind Blows Soil Away
  2. Rain Washes Soil Away
  3. Plants Hold Soil
  4. Walls and Fences
  5. Dams and Levees
  6. Beaches Change
  7. Test a Barrier
  8. Choose the Best Fix
  9. Helpers Who Protect Land
  10. Plan to Protect a Hill
  11. Unit 17 Test: Protecting Our Land
Unidad 18

Review: Earth and Matter

10 lecciones + prueba de unidad

What have we learned about land, water and materials?
  1. Review: Maps and Landforms
  2. Review: Earth's Water
  3. Review: Earth Changes
  4. Review: Erosion Fixes
  5. Review: Kinds of Matter
  6. Review: Material Properties
  7. Review: Heating and Cooling
  8. Review: Building From Pieces
  9. Review: Engineering Steps
  10. Review: Earth Science Mix-Up
  11. Unit 18 Test: Review: Earth and Matter
Unidad 19

Review: Plants, Animals and Habitats

11 lecciones + prueba de unidad

What have we learned about living things and where they live?
  1. Review: Plant Needs
  2. Review: Plant Parts
  3. Review: Pollinators
  4. Review: Seed Spreading
  5. Review: Habitats
  6. Review: Water Habitats
  7. Review: Land Habitats
  8. Review: Biodiversity
  9. Review: Animals and Plants Together
  10. Review: Life Science Mix-Up
  11. Year in Science Celebration
  12. Unit 19 Test: Review: Plants, Animals and Habitats

Estudios sociales

24 unidades · 156 lecciones · 24 pruebas de unidad · 180 días de clase

Prueba gratis la Unidad 1
Unidad 1GRATIS

Maps and Globes

4 lecciones + prueba de unidad

How do maps help us find our way?
  1. Map Keys and Symbols
  2. Cardinal Directions
  3. Continents and Oceans
  4. Land and Water on Maps
  5. Unit 1 Test: Maps and Globes
Unidad 2

Communities and Work

4 lecciones + prueba de unidad

How do people in a community work together?
  1. Goods and Services
  2. Producers and Consumers
  3. Needs, Wants and Money
  4. Jobs in the Community
  5. Unit 2 Test: Communities and Work
Unidad 3

Rules and Citizenship

4 lecciones + prueba de unidad

Why do communities have rules and leaders?
  1. Rules and Laws
  2. Community Leaders
  3. Being a Good Citizen
  4. Making Fair Choices
  5. Unit 3 Test: Rules and Citizenship
Unidad 4

People and the Past

4 lecciones + prueba de unidad

How has life changed over time?
  1. Timelines
  2. Then and Now
  3. Cultures and Traditions
  4. People Who Made a Difference
  5. Unit 4 Test: People and the Past
Unidad 5

Kinds of Communities

4 lecciones + prueba de unidad

How are communities different from one another?
  1. Urban Communities
  2. Suburban Communities
  3. Rural Communities
  4. Communities Change
  5. Unit 5 Test: Kinds of Communities
Unidad 6

From Farm to Table

4 lecciones + prueba de unidad

How do goods get to us?
  1. Where Food Comes From
  2. How Goods Are Made
  3. Moving Goods
  4. Trading and Choosing
  5. Unit 6 Test: From Farm to Table
Unidad 7

Our Country

4 lecciones + prueba de unidad

What do American symbols and holidays mean?
  1. The Flag and the Pledge
  2. American Symbols
  3. National Holidays
  4. Our Capital and States
  5. Unit 7 Test: Our Country
Unidad 8

Caring for Our Earth

4 lecciones + prueba de unidad

How can we take care of the places we share?
  1. Natural Resources
  2. Reduce, Reuse, Recycle
  3. Weather and People
  4. Protecting Special Places
  5. Unit 8 Test: Caring for Our Earth
Unidad 9

My Family and Me

7 lecciones + prueba de unidad

How do families help us grow?
  1. My Family Tree
  2. Families Then and Now
  3. Family Traditions
  4. My Family's Story
  5. Families Around the World
  6. Jobs at Home
  7. Our Family Heritage
  8. Unit 9 Test: My Family and Me
Unidad 10

Map Skills Adventure

7 lecciones + prueba de unidad

How do maps help us find our way?
  1. Making a Map
  2. Map Titles and Compass Roses
  3. Using a Map Grid
  4. Neighborhood Maps
  5. State Maps
  6. Map of the United States
  7. Globes and the Equator
  8. Unit 10 Test: Map Skills Adventure
Unidad 11

Landforms and Bodies of Water

8 lecciones + prueba de unidad

What shapes does the land take?
  1. Mountains and Hills
  2. Plains and Valleys
  3. Deserts
  4. Islands and Peninsulas
  5. Rivers and Lakes
  6. Oceans and Seas
  7. Landforms on a Map
  8. Where People Live
  9. Unit 11 Test: Landforms and Bodies of Water
Unidad 12

Our Neighborhood Helpers

7 lecciones + prueba de unidad

Who helps keep our community safe and healthy?
  1. Firefighters
  2. Police Officers
  3. Doctors and Nurses
  4. Teachers and Librarians
  5. Mail Carriers
  6. Farmers
  7. Volunteers
  8. Unit 12 Test: Our Neighborhood Helpers
Unidad 13

Money Matters

8 lecciones + prueba de unidad

How do people use money wisely?
  1. Coins and Bills
  2. Earning Money
  3. Spending Choices
  4. Saving for a Goal
  5. Banks
  6. Opportunity Cost
  7. Scarcity
  8. Bartering
  9. Unit 13 Test: Money Matters
Unidad 14

Government Around Us

8 lecciones + prueba de unidad

Who makes the rules in our town, state and country?
  1. What Is Government?
  2. Mayors and Town Councils
  3. Governors and States
  4. The President
  5. Congress Makes Laws
  6. Courts Keep Things Fair
  7. Voting
  8. Paying for Public Services
  9. Unit 14 Test: Government Around Us
Unidad 15

First Americans

7 lecciones + prueba de unidad

Who were the first people to live in America?
  1. The First Americans
  2. Homes of Native Peoples
  3. Native Foods and Farming
  4. Native Peoples and the Land
  5. Trade Among Native Nations
  6. Native Leaders
  7. Native Communities Today
  8. Unit 15 Test: First Americans
Unidad 16

American Heroes

8 lecciones + prueba de unidad

How can one person make a difference?
  1. George Washington
  2. Abraham Lincoln
  3. Harriet Tubman
  4. Sacagawea
  5. Martin Luther King Jr.
  6. Helen Keller
  7. Jackie Robinson
  8. Sally Ride
  9. Unit 16 Test: American Heroes
Unidad 17

Cultures Around the World

8 lecciones + prueba de unidad

How are people around the world alike and different?
  1. What Is Culture?
  2. Food Around the World
  3. Clothing Around the World
  4. Homes Around the World
  5. Celebrations Around the World
  6. Languages
  7. Music and Dance
  8. Respecting Differences
  9. Unit 17 Test: Cultures Around the World
Unidad 18

Getting Along Together

8 lecciones + prueba de unidad

How can we solve problems together?
  1. Working in Groups
  2. Listening to Others
  3. Solving Conflicts Peacefully
  4. Rights and Responsibilities
  5. Fairness and Sharing
  6. Kindness at School
  7. Including Everyone
  8. Being Honest
  9. Unit 18 Test: Getting Along Together
Unidad 19

History Detectives

8 lecciones + prueba de unidad

How do we learn about the past?
  1. What Is History?
  2. Clues From the Past
  3. Artifacts
  4. Photographs as Clues
  5. Old Maps
  6. Interviewing Elders
  7. Past, Present and Future
  8. Our Town's History
  9. Unit 19 Test: History Detectives
Unidad 20

Quarter 4 Review 1

8 lecciones + prueba de unidad

How much do you remember from this year?
  1. Review Day 1
  2. Review Day 2
  3. Review Day 3
  4. Review Day 4
  5. Review Day 5
  6. Review Day 6
  7. Review Day 7
  8. Review Day 8
  9. Unit 20 Test: Quarter 4 Review 1
Unidad 21

Quarter 4 Review 2

8 lecciones + prueba de unidad

How much do you remember from this year?
  1. Review Day 9
  2. Review Day 10
  3. Review Day 11
  4. Review Day 12
  5. Review Day 13
  6. Review Day 14
  7. Review Day 15
  8. Review Day 16
  9. Unit 21 Test: Quarter 4 Review 2
Unidad 22

Quarter 4 Review 3

8 lecciones + prueba de unidad

How much do you remember from this year?
  1. Review Day 17
  2. Review Day 18
  3. Review Day 19
  4. Review Day 20
  5. Review Day 21
  6. Review Day 22
  7. Review Day 23
  8. Review Day 24
  9. Unit 22 Test: Quarter 4 Review 3
Unidad 23

Quarter 4 Review 4

8 lecciones + prueba de unidad

How much do you remember from this year?
  1. Review Day 25
  2. Review Day 26
  3. Review Day 27
  4. Review Day 28
  5. Review Day 29
  6. Review Day 30
  7. Review Day 31
  8. Review Day 32
  9. Unit 23 Test: Quarter 4 Review 4
Unidad 24

Quarter 4 Review 5

8 lecciones + prueba de unidad

How much do you remember from this year?
  1. Review Day 33
  2. Review Day 34
  3. Review Day 35
  4. Review Day 36
  5. Review Day 37
  6. Review Day 38
  7. Review Day 39
  8. Review Day 40
  9. Unit 24 Test: Quarter 4 Review 5

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