Grade 1 Unit of Study 8: Equality and Equations to 20

In This Unit of Study…

Students will recognize that the equal sign means “the same as” and use this understanding to explore equalities. They will determine if addition/subtraction equations are true or false.

B.E.S.T. Benchmarks:

• MA.1.NSO.2.1 Recall addition facts with sums to 10 and related subtraction facts with automaticity. 
• MA.1.AR.2.2 Determine and explain if equations involving addition or subtraction are true or false. 
• MA.1.AR.2.3 Determine the unknown whole number in an addition or subtraction equation, relating three whole numbers, with the unknown in any position. 

Overarching Key Concepts:

• Fluency: Build related facts to recall addition and subtraction facts within 10
• Determine if equations are true or false and solve for the unknown