Florida B.E.S.T. MA.4.AR.2.1

Math4th Grade

The Standard

Determine and explain whether an equation involving any of the four operations with whole numbers is true or false.

Florida B.E.S.T. Standards for Mathematics

Teacher's field guide

What Students Need to Do: Students calculate the value on each side of an equation, then compare the results. They label it true or false and explain why using numbers, words, or a model.
What Mastery Looks Like: Students correctly evaluate both sides, even when the operations differ. They justify each decision with accurate calculations and explain that equal values make an equation true.
Common Misconceptions: Some students treat the equal sign as “the answer comes next” instead of “both sides have the same value.” Others check only one side or make a fact error. They may call an equation false because the expressions look different.
How to Assess It: Exit ticket: Mark 48 ÷ 6 = 3 + 5 and 7 × 8 = 60 - 6 as true or false. Show both calculations and explain one choice.

Lesson moves

Give students operation cards and number cards, then have them build, solve, and sort six equations into true and false piles.
Ask students to explain how two different expressions can have the same value, using 48 ÷ 6 = 3 + 5.
Play True or False Corners: display an equation, have students move to a corner, then call on one student to justify the choice.
Use a pencil-packing problem with six boxes of eight pencils, then test whether 6 × 8 = 50 - 2 represents the total.

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