Grade 3 Math Units

Explore Grade 3 Math unit plans with standards-aligned lessons that build multiplication, division, fractions, and real-world problem-solving skills.

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Grade 3 Math Units

Unit Plan 36 (Grade 3 Math): Cumulative Synthesis & Exhibition

Apply Grade 3 math across OA, NBT, NF, MD, and G in multi-step tasks; choose efficient strategies, model with graphs/diagrams, and defend solutions with precise units, evidence, and reasoning.

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Grade 3 Math Units

Unit Plan 35 (Grade 3 Math): NBT Power-Up—Rounding, +/– within 1,000, × by 10s

Strengthen Grade 3 place-value skills by rounding to the nearest 10/100, adding and subtracting within 1,000, and multiplying by multiples of 10 using efficient, pattern-based strategies and reasonableness checks.

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Grade 3 Math Units

Unit Plan 34 (Grade 3 Math): Geometry Deep Dive—Attribute Hierarchies

Sort and classify quadrilaterals using precise geometry vocabulary, build attribute hierarchies, and defend always/sometimes/never claims with examples and counterexamples to deepen Grade 3 geometry reasoning.

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Grade 3 Math Units

Unit Plan 33 (Grade 3 Math): Data Displays—Picture/Bar Graphs & Line Plots

Choose and interpret scaled picture graphs, bar graphs, and line plots in Grade 3 math to compare data, answer how-many-more/fewer questions, and write precise comparative statements using clear titles, labels, scales, keys, and units.

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Grade 3 Math Units

Unit Plan 32 (Grade 3 Math): Measurement Megamix—Time, Mass, Volume, Length

Solve real-world Grade 3 measurement problems by modeling elapsed time, mass, volume, and inch-based lengths with timelines, diagrams, and line plots, selecting appropriate tools, labeling units clearly, and checking reasonableness.

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Grade 3 Math Units

Unit Plan 31 (Grade 3 Math): Fractions Synthesis—Benchmarks, Equivalence, Compare

Learn to place fractions on number lines, prove equivalence, and compare using benchmarks and clear symbols to build flexible Grade 3 fraction reasoning.

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Grade 3 Math Units

Unit Plan 30 (Grade 3 Math): Area & Perimeter Design Challenge

Design a mini-park under area/perimeter constraints, calculate with A = l × w and decomposition, and justify layout choices using labeled diagrams, units, and clear math reasoning.

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Grade 3 Math Units

Unit Plan 29 (Grade 3 Math): Mixed Operations & Unknowns in All Positions

Represent and solve 1–2 step math stories using equations with a letter for the unknown, bar models, and estimation to check reasonableness and build flexible problem-solving skills.

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Grade 3 Math Units

Unit Plan 28 (Grade 3 Math): Fact Fluency Power-Up—Strategies & Games

Solidify multiplication and division within 100 using properties, fact families, and spaced-retrieval games that build accuracy, flexible strategy use, and confident problem solving.

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Grade 3 Math Units

Unit Plan 27 (Grade 3 Math): Problem Strings—Fractions, Measurement, and Graphs

Daily problem strings build flexible strategies with fractions, elapsed time, mass/volume, and graphs—boosting reasoning, benchmark use, unit precision, and quick comparison skills.

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Grade 3 Math Units

Unit Plan 26 (Grade 3 Math): Multiplying by Multiples of 10—Place-Value Patterns

Multiply one-digit numbers by multiples of 10 using place-value models and properties—not “add a zero”—to build patterns, explain tens-based reasoning, and justify efficient strategies.

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Grade 3 Math Units

Unit Plan 25 (Grade 3 Math): Partitioning Shapes & Unit Fractions of Areas

Partition shapes into equal areas, label each part as a unit fraction (1/b), and use models to justify fair shares in real-world contexts.

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Grade 3 Math Units

Unit Plan 24 (Grade 3 Math): Shapes & Attributes—Triangles, Quadrilaterals, Polygons

Classify polygons by shared attributes; build quadrilateral family trees; justify with properties and counterexamples (e.g., all squares are rectangles).

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Grade 3 Math Units

Unit Plan 23 (Grade 3 Math): Line Plots—Lengths to 1/2 and 1/4 Inch

Measure to the nearest 1/2 and 1/4 inch, create clear line plots, and solve “how many more/fewer” comparison problems using precise units and mathematical reasoning.

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Grade 3 Math Units

Unit Plan 22 (Grade 3 Math): Comparing Fractions with Same Numerator/Denominator

Grade 3 fractions: compare with same numerator or denominator using area and number line models; record with <, >, = and justify clearly using same-whole reasoning.

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Grade 3 Math Units

Unit Plan 21 (Grade 3 Math): Fraction Equivalence—Same Whole, Same Size

Grade 3 equivalent fractions: prove pairs like 1/2=2/4 with area and number line models, emphasizing same whole/same size reasoning, clear labels, and concise explanations.

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Grade 3 Math Units

Unit Plan 20 (Grade 3 Math): Fractions on the Number Line—Benchmarks & Reasoning

Use benchmarks (0, 1/2, 1) to locate and compare fractions on number lines; partition equal intervals, label a/b precisely, and justify fraction size with clear >, <, = reasoning.

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Grade 3 Math Units

Unit Plan 19 (Grade 3 Math): Fractions as Numbers—Parts of a Whole

Understand unit fractions and place fractions on number lines: build a/b from 1/b, partition equal intervals, and locate fractions precisely to deepen number sense.

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Grade 3 Math Units

Unit Plan 18 (Grade 3 Math): Midyear Synthesis—Facts, Area/Perimeter, and NBT

Mixed 3rd-grade math review: practice fact fluency, area vs. perimeter, rounding, and two-step word problems using models, equations, and estimates.

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Grade 3 Math Units

Unit Plan 17 (Grade 3 Math): Measurement—Mass & Volume Word Problems

Solve real-world mass (g/kg) and volume (L) word problems—one- and two-step—by modeling situations, writing equations with unknowns, and checking reasonableness using consistent units.

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Grade 3 Math Units

Unit Plan 16 (Grade 3 Math): Perimeter—Walk the Edge

Measure and add side lengths to find perimeter, solve missing-side problems with equations, and clearly distinguish perimeter (linear units) from area (square units) in real-world contexts.

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Grade 3 Math Units

Unit Plan 15 (Grade 3 Math): Area Formula A = l×w & Additive Area

Use A = l × w to find rectangle area, label in square units, and decompose rectilinear shapes into smaller rectangles to add their areas using the distributive property.

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Grade 3 Math Units

Unit Plan 14 (Grade 3 Math): Area as Unit Squares—Foundations

Understand area by tiling rectangles with unit squares and counting rows and columns; use arrays and repeated addition to model and label area in square units.

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Grade 3 Math Units

Unit Plan 13 (Grade 3 Math): Two-Step Word Problems & Reasonableness

Solve two-step word problems with unknowns in any position using equations and visual models, then use rounding and estimation to check for reasonableness and clearly justify solution steps.

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Grade 3 Math Units

Unit Plan 12 (Grade 3 Math): Multiplication & Division Facts—7s, 8s, 9s

Develop fact fluency for 7s, 8s, and 9s by breaking apart factors with the distributive property, leveraging patterns like 10n−n for 9s, and linking multiplication to division through fact families for efficient strategy-based mastery.