Matemáticas de 2.º grado: alineación con Common Core

• Operaciones y pensamiento algebraico
• Números y operaciones en base diez
• Medición y datos
• Geometría

Operaciones y pensamiento algebraico OA · 4 estándares · 4 cubiertos

• 2.OA.A.1
  Cubierto

  Solve one- and two-step story problems within 100

  • Unidad 1 · Adding, Subtracting, and Working with Data: Diagrams to Compare
  • Unidad 2 · Adding and Subtracting within 100: Represent and Solve Story Problems
• 2.OA.B.2
  Cubierto

  Add and subtract within 20 fluently; know all sums of two one-digit numbers

  • Unidad 1 · Adding, Subtracting, and Working with Data: Add and Subtract Within 20
  • Unidad 9 · Putting It All Together: Fluency Within 20 and Measurement
• 2.OA.C.3
  Cubierto

  Tell odd from even numbers; write an even number as a sum of two equal addends

  • Unidad 8 · Equal Groups: Odd and Even
• 2.OA.C.4
  Cubierto

  Use addition to find the total in a rectangular array (up to 5 by 5)

  • Unidad 8 · Equal Groups: Rectangular Arrays

Números y operaciones en base diez NBT · 9 estándares · 9 cubiertos

• 2.NBT.A.1
  Cubierto

  Understand the hundreds, tens and ones in a three-digit number

  • Unidad 5 · Numbers to 1,000: The Value of Three Digits
• 2.NBT.A.2
  Cubierto

  Count within 1,000; skip-count by 5s, 10s and 100s

  • Unidad 5 · Numbers to 1,000: Count by 5s, 10s, and 100s
• 2.NBT.A.3
  Cubierto

  Read and write numbers to 1,000 in numerals, words and expanded form

  • Unidad 5 · Numbers to 1,000: Read and Write Three-Digit Numbers, Expanded Form, Number Names to 1,000
• 2.NBT.A.4
  Cubierto

  Compare three-digit numbers with >, = and <

  • Unidad 5 · Numbers to 1,000: Compare and Order Numbers within 1,000
• 2.NBT.B.5
  Cubierto

  Add and subtract within 100 fluently using place value

  • Unidad 2 · Adding and Subtracting within 100 (toda la unidad, 23 lecciones)
• 2.NBT.B.6
  Cubierto

  Add up to four two-digit numbers

  • Unidad 2 · Adding and Subtracting within 100: Add Up to Four Two-Digit Numbers
• 2.NBT.B.7
  Cubierto

  Add and subtract within 1,000 with models and place-value strategies

  • Unidad 7 · Adding and Subtracting within 1,000 (toda la unidad, 23 lecciones)
• 2.NBT.B.8
  Cubierto

  Add or subtract 10 or 100 in your head

  • Unidad 5 · Numbers to 1,000: 10 More, 10 Less, 100 More, 100 Less
  • Unidad 7 · Adding and Subtracting within 1,000: Add 10 or 100 Mentally, Subtract 10 or 100 Mentally
• 2.NBT.B.9
  Cubierto

  Explain why addition and subtraction strategies work

  • Unidad 2 · Adding and Subtracting within 100: Compare Subtraction Strategies
  • Unidad 7 · Adding and Subtracting within 1,000: Explain Why Addition Strategies Work

Medición y datos MD · 10 estándares · 10 cubiertos

• 2.MD.A.1
  Cubierto

  Measure length with rulers, yardsticks, meter sticks and tapes

  • Unidad 3 · Measuring Length: Measure in Centimeters, Use a Centimeter Ruler, Measure in Inches, Choose the Right Tool
• 2.MD.A.2
  Cubierto

  Measure the same object in two different units

  • Unidad 3 · Measuring Length: Same Length, Different Units
• 2.MD.A.3
  Cubierto

  Estimate lengths in inches, feet, centimeters and meters

  • Unidad 3 · Measuring Length: Estimate Lengths
• 2.MD.A.4
  Cubierto

  Find how much longer one object is than another

  • Unidad 3 · Measuring Length: Compare Lengths in Centimeters
• 2.MD.B.5
  Cubierto

  Solve length story problems within 100

  • Unidad 3 · Measuring Length: Length Story Problems, Length Problems with Tape Diagrams
• 2.MD.B.6
  Cubierto

  Show numbers, sums and differences on a number line

  • Unidad 4 · Addition and Subtraction on the Number Line (toda la unidad, 16 lecciones)
• 2.MD.C.7
  Cubierto

  Tell time to the nearest five minutes, using a.m. and p.m.

  • Unidad 6 · Geometry, Time, and Money: Time on the Clock
• 2.MD.C.8
  Cubierto

  Solve story problems with dollars and coins

  • Unidad 6 · Geometry, Time, and Money: The Value of Money
• 2.MD.D.9
  Cubierto

  Collect length data and show it on a line plot

  • Unidad 3 · Measuring Length: Line Plots
• 2.MD.D.10
  Cubierto

  Make and read picture graphs and bar graphs

  • Unidad 1 · Adding, Subtracting, and Working with Data: Ways to Represent Data

Geometría G · 3 estándares · 3 cubiertos

• 2.G.A.1
  Cubierto

  Recognize and draw shapes with given attributes, like a number of angles

  • Unidad 6 · Geometry, Time, and Money: Attributes of Shapes
• 2.G.A.2
  Cubierto

  Split a rectangle into rows and columns of equal squares

  • Unidad 6 · Geometry, Time, and Money: Partition Rectangles into Squares
• 2.G.A.3
  Cubierto

  Split circles and rectangles into halves, thirds and fourths

  • Unidad 6 · Geometry, Time, and Money: Halves, Thirds, and Fourths

Todas las unidades y lecciones de 2.º grado

Common Core State Standards © Copyright 2010 National Governors Association Center for Best Practices and Council of Chief State School Officers. Todos los derechos reservados. Las descripciones de los estándares en estas páginas son resúmenes breves de KidUniversity, no el texto oficial; lee los estándares completos (en inglés) en thecorestandards.org. KidUniversity no está afiliado ni respaldado por el NGA Center ni el CCSSO.