Mathematics (2019) Grade(s): 1

MA19.1.7

Explain that the equal sign means the same as.“ Determine whether equations involving addition and subtraction are true or false.“

COS Examples

Example: determining which of the following equations are true and which are false: 6 = 6, 7 = 8 - 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2

Unpacked Content

Knowledge

Students know:
  • strategies for finding the value of simple addition and subtraction equations.
  • Strategies for comparing quantities between 0 and 20.
  • Strategies to show equality or inequality.

Skills

Students are able to:
  • efficiently apply strategies for determining the value of simple addition and subtraction equations.
  • Justify and explain their thinking.

Understanding

Students understand that:
  • the equal sign represents a relationship of balance between numerical expressions rather than performing an operation.

Vocabulary

  • Equation
  • Meaning of the equal sign
ALSDE LOGO