K.4 Understanding Addition and Subtraction

Unit Goals

  • Students relate counting to addition and solve addition and subtraction story problems within 10.

Section A Goals

  • Understand addition as putting together and subtraction as taking from.

Section B Goals

  • Represent and solve Add To, Result Unknown and Take From, Result Unknown story problems within 10.

Section C Goals

  • Find the value of addition and subtraction expressions within 10.
  • Relate addition and subtraction expressions to story problems.
Read More

Glossary Entries

  • above

  • add

    \(4 + 3\)

    Four plus three


  • below

  • beside

  • circle

  • expression

    \(6 + 4\)


    \(3 - 3\)


  • fewer

  • less

    3 is less than 9


  • longer

    The straw on the top is longer than the straw on the bottom.


  • more

  • next to

  • number writing reference

    1

    one

    2

    two

    3

    three

    4

    four

    5

    five

    6

    six

    Five-frame, full. Below, 1 dot.

    7

    seven

    8

    eight

    9

    nine

    10

    ten


  • rectangle


  • shorter

    The straw on the bottom is shorter than the straw on the top.


  • subtract

    \(5 - 2\)

    Five minus two


  • triangle