3.1.E

Math3rd Grade

The Standard

create and use representations to organize, record, and communicate mathematical ideas

Texas Essential Knowledge and Skills for Mathematics

Teacher's field guide

What Students Need to Do: Students show their math thinking with objects, pictures, number lines, tables, words, and equations. They select a format that fits the problem and helps others follow their reasoning.
What Mastery Looks Like: Students choose a useful model, such as a number line, table, diagram, or equation. Their work is labeled, matches the problem, and clearly shows their reasoning.
Common Misconceptions: Students may draw pictures that do not match the numbers or operation. They may leave out labels, units, or an equation that explains the model.
How to Assess It: Give students 24 counters and ask them to show 24 divided into 4 equal groups using a drawing, an equation, and one sentence.

Lesson moves

Give pairs counters and grid paper to model 18 in three different ways, then label each model.
Ask students to write which representation best explains 32 divided into 4 equal groups and why.
Play Representation Match by pairing problem cards with matching diagrams, tables, number lines, and equations.
Use a classroom snack order to show quantities with a table, a bar model, and an equation. Each group compares the formats.

Keep exploring

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