Math Curriculum

1st Grade

Course Purpose:

Students will use numbers to represent, solve, and apply the properties and relationship of addition and subtraction with use of place value to solve problems. Students will fluently add and subtract within 20 as they extend the counting sequence.

Outcomes and Components:

M.1.2

Students will subtract within 20 using a variety of strategies.

Pacing  

Instruct/

Assess

Component Code

Component

Standard(s)

  M.1.2.1 Relate subtraction as an unknown addend problem. 1.OA.B.4
  M.1.2.2 Relate counting back as a strategy for subtraction. 1.OA.C.5
  M.1.2.3 Demonstrate fluency for subtraction within 10. 1.OA.C.6
  M.1.2.4 Solve word problems* within 20 by using objects, drawings, and equations to include taking from, taking apart, and comparing using a symbol for unknowns in any position. 1.OA.A.1
  M.1.2.5 Apply properties of subtraction as strategies to subtract including using related known facts, the relationship between addition and subtraction, and decomposing a number leading to a ten. 1.OA.B.3
  M.1.2.6 Explain the meaning of the equal sign and determine if subtraction equations are true or false. 1.OA.D.7
  M.1.2.7 Determine the unknown whole number in a subtraction equation relating three whole numbers and produce the unknown number in an equation to make the equation true. 1.OA.D.8

Academic Vocabulary: Balanced

Content Vocabulary: Difference, subtraction, missing number, equal sign, make a ten, decompose, number bond