Math curriculum
This 3rd grade math curriculum is organized into 16 units, 21 skills, and 123 practice steps. Current topic coverage includes Place value, Add and subtract, Multiplication facts, and Division facts. Each unit includes guided lesson steps, skill practice, and a clear path to the next concept.
Open any unit to see the full lesson path. The summaries below are rendered in static HTML for clear curriculum discovery.
Unit 1
Students build strong number sense to 10,000 through reading, writing, comparing, ordering, and rounding whole numbers. The unit blends steady practice with visual place-value models and reasoning about how numbers are composed.
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Unit 2
Students develop fluency with three-digit addition and subtraction using place-value strategies, regrouping, and estimation. Practice includes mental math, models, and explanation of method choices.
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Unit 3
Students build multiplication meaning through equal groups, arrays, repeated addition, and fact patterns. The unit emphasizes conceptual understanding first and then fluency across the multiplication facts.
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Unit 4
Students understand division as sharing and grouping and connect division facts to multiplication facts. The unit develops fluency with related facts and builds flexibility with unknowns and remainders in context.
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Unit 5
Students apply multiplication and division to one-step and two-step situations involving equal groups, arrays, and comparisons. They explain their reasoning, choose operations, and check answers with related facts and estimation.
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Unit 6
Students solve grade-level two-step story problems using addition and subtraction with clear problem structure, visual models, and reasonableness checks. This unit ensures sustained practice with multi-step add/subtract reasoning across the year.
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Unit 7
Students solve two-step problems in which multiplication is essential, including multiplication followed by addition or subtraction. The unit focuses on representing structure, choosing efficient strategies, and explaining why multiplication is needed.
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Unit 8
Students develop the idea of fractions as equal parts of a whole and as parts of a set. The unit emphasizes visual models, unit fractions, equivalent fractions, and comparison reasoning.
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Unit 9
Students solve practical measurement problems involving length, mass, liquid volume, time, and money. The unit includes reading clocks to the nearest minute, elapsed time, coins and bills, making change, and money word problems.
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Unit 10
Students explore area as covering and perimeter as distance around a shape. The unit links arrays, multiplication, addition, and geometric measurement to build both conceptual and procedural understanding.
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Unit 11
Students classify shapes by attributes, explore right angles and turns, and build first-quadrant coordinate readiness. The unit connects shape properties, spatial reasoning, and mathematical language.
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Unit 12
Students interpret graphs and line plots, explore probability language, study numeric patterns, and make introductory connections to tenths and hundredths through models. This unit strengthens representation, comparison, and mathematical connections across strands.
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Unit 13
Students integrate place value, the four operations, measurement, and data in mixed contexts. The unit emphasizes multistep reasoning, operation choice, estimation, mathematical communication, and checking for reasonableness.
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Unit 14
Students solve two-step problems in which division is essential, including division followed by addition or subtraction and mixed measurement/grouping situations. The unit ensures strong end-of-year coverage of division-centered multistep reasoning.
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Unit 15
Students deepen understanding by connecting fractions, area models, equivalent fractions, and decimal representations. The work remains in-grade but asks for stronger explanation, comparison, and synthesis across representations.
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Unit 16
Students tackle richer in-grade problems that combine operations, data, geometry, measurement, fractions, and estimation. The focus is on sustained reasoning, communication, and strategic choice rather than new content.
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