7 units · 28 lessons

Grade 3: Math

Start with a unit whose prerequisites fit. Work through the lessons, use the study guide to review, and try the new cases before continuing.

  1. Unit 1 · 4 lessons

    Multiply and Understand Both Meanings of Division

    Interpret equal groups, equal sharing, group counting, and missing factors.

    Before you begin: Add repeated equal groups; recognize a rectangular array.

  2. Unit 2 · 4 lessons

    Build Fact Strategies and Solve Two-Step Problems

    Use distribution, regrouping, zero/one patterns, and multiple operations.

    Before you begin: Interpret multiplication and both meanings of division.

  3. Unit 3 · 4 lessons

    Round and Calculate with Place Value

    Round to tens and hundreds, compute within 1000, and multiply tens.

    Before you begin: Read hundreds, tens, and ones; regroup addition and subtraction.

  4. Unit 4 · 4 lessons

    Fractions as Parts and Numbers

    Name, locate, compare, and recognize equal fractional amounts of a whole.

    Before you begin: Count equal parts and recognize a whole. · Understand halves and use a simple number line from zero to one.

  5. Unit 5 · 4 lessons

    Solve Time, Mass, and Liquid-Volume Problems

    Measure elapsed minutes and calculate with grams, kilograms, and liters in supplied records.

    Before you begin: Read clocks; add, subtract, multiply, and divide whole numbers.

  6. Unit 6 · 4 lessons

    Distinguish Area from Perimeter

    Count unit squares, add non-overlapping areas, and calculate boundaries and missing sides.

    Before you begin: Multiply equal groups; measure lengths in equal units.

  7. Unit 7 · 4 lessons

    Interpret Scaled Data and Shape Categories

    Read scaled picture graphs, fraction-marked line plots, quadrilateral categories, and area partitions.

    Before you begin: Read whole-unit graphs; name fractions and equal areas.

Check what you can explain

The subject test uses additional supplied cases across these units. Its feedback links back to the relevant lessons. Use it to plan practice; a score on these questions is not a school grade or proof of complete subject mastery.

Open the subject test