Students will begin to understand the meaning of the equals sign. Students have probably only seen problems where the sum or difference is on the right. They’re probably also used to evaluating one side. Show things like 3 = 3, 1 = 2 – 1, and 1 + 3 = 2 + 2, are all valid. Students will also learn how to convert word problems to equations. For example, John has 3 M&Ms. Steve has 3 Reese's pieces. Use = to show John and Steve have the same number of candies. This translates to 3 = 3. Jack has 2 dog stickers and 3 cat stickers. Tom has 1 dog sticker and 4 cat stickers. Use = to show Jack and John have the same number of stickers. This translates to 2 + 3 = 1 + 4.

Equal sign by Khan Academy

Equal sign by Khan Academy

Conclude by leading this investigation:

Willie Wiggle Wiggle Worm

by MathPickle

1.OA.D.7: 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.