1.OA.D.7 - About the Math, Learning Targets, and Increasing Rigor

Grade 1 Number Concepts

1.OA.D.7

Full Standard

Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false. For example, which of the following equations are true and which are false? 6 = 6, 7 = 8 – 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2.

 

Measurement Topic

This standard is reported on the report card in these quarters as follows:

1st Grade Students Learning 1st Grade Standards
Quarter 1 Quarter 2 Quarter 3 Quarter 4

Report Card Measurement Topic: Demonstrates understanding of number concepts and relationships.

Report Card Measurement Topic: Demonstrates understanding of number concepts and relationships.

 
Kindergarten Students Learning 1st Grade Standards
Quarter 1 Quarter 2 Quarter 3 Quarter 4

 

Report Card Measurement Topic: Demonstrates understanding of number concepts and relationships.

Report Card Measurement Topic: Demonstrates understanding of number concepts and relationships.

 

 

About the Math

pan balance

Skills and concepts below are learning goals for this standard.

  • Explain the meaning of equal using models and drawings.

The equal sign in mathematics means that two values are equal. It establishes that the quantity on the left side is the same as the quantity on the right side of the equal sign. Students need to understand that quantities can be represented in many different ways. This highlights the importance of students understanding that numbers can be decomposed into many different representations. Students need to see that 6 = 4 + 2, 6 = 5 + 1, etc.

  • Determine if two quantities are equal. 

number line balanceThis standard should be introduced and reinforced with balances including pan balances as well as number line balances. Students should work with equations that have operations on both sides of the equal sign. Students should be able to consider unknowns on either side of the equal sign.

  • Represent equal quantities with an equation with operations on either side, neither side, or both sides of the equal sign.
  • Determine whether an equation is true or false.

Work with this standard is much more than identifying if an equation is true or false though that routine is useful for reinforcing their understanding. This standard should also be connected with two-digit numbers as the year continues. For example, as students begin to work with adding multiples of 10, the equations they encounter should be written as both 72 + 10 = 82 and 82 = 72 + 10. This standard also lends itself to operations on both sides of the equal sign. For example, students should be able to determine that 4 + 2 = 5 + 1 and in time they are able to find that ? = 7 when 3 + ? = 5 + 5. 

Essential vocabulary for this standard includes equal sign, equation, true equation, false equation, addition, and subtraction (online dictionary Links to an external site. Download HCPSS Vocabulary Cards

).

Number Balance Links to an external site.

 

 

Progression of Standard within Grade 1

This progression informs how to develop the standard within the grade level. This progression is provided by HCPSS Elementary Mathematics.

Progression Throughout Year
Quarter 1 Quarter 2 Quarter 3 Quarter 4
  • Explain the meaning of equal using models and drawings.
  • Determine if two quantities are equal. 
  • Represent equal quantities with an equation with an operation on either side or neither side (8 = 8).
  • Determine whether an equation is true or false.
  • Explain the meaning of equal using models and drawings.
  • Determine if two quantities are equal. 
  • Represent equal quantities with an equation with operations on both sides.
  • Determine whether an equation is true or false.
Apply to properties, facts, and two-digit numbers. Apply to properties, facts, and two-digit numbers.

 

Progression of this Standard Across Grades

This progression is informed by the Achieve the Core Coherence Map Links to an external site.. Information is not the complete standard.

Progression Across Grades
Kindergarten Grade 2

This concept is not taught prior to grade 1.

  • Odd and even numbers (2.OA.3)
  • Use addition to find the total number objects in arrays (2.OA.4)

 

 

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