DLI 1st grade guide

1st Grade Math Scope & Sequence 2024-2025

sign, and determine whether 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 Standard 1.OA.8 Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8+? = 11, 5 = ?-3, 6+6 = ?

End of Unit Competency

By the end of Topic 5 students will be able to justify that the both sides of the equal sign represent the same value.

Language Functions and Features: Describe data and/or steps to solve problems using: ● Mathematical terms ( equal sign, equation, unknown, represent, value, model, sum, increase, decrease, symbol, precise ) ● Visuals ( pictures, bar diagrams ) to support approach, solution, and/or extract information ● Connectors to order steps ( frst, next, then, fnally ) and indicate reasons ( because, so, that means, as a result )

SKILLS

VOCABULARY

MANIPULATIVES

● Equality ● True equations ● Addition and subtraction computation ● Properties of equations ● Addition and

● Counters ● Barmodel ● Number cards ● Connecting cubes

Review as needed

subtraction situations