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Grade 3 Mathematics: Alberta Program of Studies

A complete, four-topic Grade 3 mathematics learning path for students in Calgary. Across approximately 60 instructional days, students develop number sense, computation and problem-solving skills; explore fractions, patterns and equations; investigate measurement, geometry and spatial reasoning; and use data and probability to interpret the world around them. Learning emphasizes concrete materials, visual representations, mathematical communication, reasoning, and connections to familiar Calgary contexts.

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2.0(1)Mathematics·3·Alberta Program of Studies·Canada
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·Aug 28, 2026
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Over approximately 15 days, students develop flexible understanding of whole numbers to 1,000. They represent numbers using concrete materials, drawings, expanded notation, standard notation, and words; compare and order numbers; identify benchmarks and number patterns; and round or estimate when appropriate. Students build and apply efficient strategies for addition and subtraction within 1,000, including regrouping, mental mathematics, estimation, and checking for reasonableness. They solve one- and two-step problems involving addition and subtraction, explain their strategies, and choose appropriate representations such as open number lines, base-ten blocks, place-value charts, and equations. Instruction should include local contexts such as Calgary temperatures, distances, attendance counts, sports scores, and community events.

Recommended Tasks
  • Create a place-value portfolio: represent selected numbers from 0 to 1,000 with base-ten blocks, a place-value chart, expanded notation, words, and a number-line location; include comparisons using <, >, and =.
  • Complete a Calgary data problem set involving addition, subtraction, estimation, and two-step problems. Students must show at least two strategies for one problem and explain how they checked the answer.
  • Conduct a number talk routine several times during the unit and submit a reflection describing which mental-math strategies are most efficient for different addition and subtraction problems.

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