2nd Grade

Here are all the units that your child will be studying in math in their second grade year. Consult with your child's teacher to learn what unit your child is working on at any given time.

Unit 1: Numbers Within 20 Addition, Subtraction, and Data

  • Different strategies, such as making a ten and doubles plus one, can help students add and subtract.

  • Students can use what they know about the relationship between addition and subtraction to solve problems.

  • Organizing data into graphs can help students answer questions about the data.

  • Knowing how to model a problem with pictures or diagrams can help students solve problems.

Unit 2: Numbers Within 100 Addition, Subtraction, Time, and Money

  • Adding or subtracting from a tens number can make a problem easier. Knowing how to break apart numbers to get to the nearest ten can help students solve addition and subtraction problems.

  • Models can represent word problems. Knowing how to create a good model will help students solve one- or two-step word problems.

  • Students can use what they know about skip counting by fives to help them tell time to the nearest 5 minutes.

Unit 3: Numbers Within 1,000 Place Value, Addition, and Subtraction

  • The value of a digit in a number depends on its place in the number. Knowing about place value will help students determine the total value of a number and will help them read, write, and compare numbers.

  • Students can use what they know about place value to mentally add 10 or 100 to numbers or subtract 10 or 100 from numbers.

  • Knowing about place value will help students break apart numbers as a strategy for adding or subtracting.

Unit 4: Length Measurement, Addition and Subtraction, and Line Plots

  • Different tools and units can be used to measure length. Knowing about measurement will help students to estimate and compare lengths.

  • Students can use addition or subtraction to find the difference between the lengths of objects.

Unit 5: Shapes and Arrays Partitioning and Tiling Shapes, Arrays, Evens and Odds

  • Knowing the number of sides and angles a shape has can help students identify the shape.

  • Students can use what they know about dividing a shape into equal parts to show halves, thirds, and fourths.

  • An array is an arrangement of objects in equal rows and columns. Students can use what they know about addition and skip counting to find the number of objects in an array.