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Which would you do in your head?
This resource invites students to think about how they currently operate with number before looking at how to solve 38 + __ = 66 using a bar diagram.
Additional details |
|
Year level(s) | Year 2, Year 3 |
---|---|
Audience | Student, Teacher |
Purpose | Teaching resource, Teaching strategies |
Format | Video |
Teaching strategies and pedagogical approaches | Questioning, Targeted teaching, Concrete Representational Abstract model |
Keywords | mental strategies,,,,,,,, written strategies, bar diagram, addition, subtraction, reasoning, fluency, understanding, explicit teaching |
Curriculum alignment |
|
Curriculum connections | Numeracy |
Strand and focus | Number, Build understanding |
Topics | Place value, Addition and subtraction, Operating with number |
AC: Mathematics (V9.0) content descriptions |
AC9M2N04
Add and subtract one- and two-digit numbers, representing problems using number sentences and solve using part-part-whole reasoning and a variety of calculation strategies
AC9M3A02
Extend and apply knowledge of addition and subtraction facts to 20 to develop efficient mental strategies for computation with larger numbers without a calculator |
Numeracy progression |
Additive strategies (P7, P8)
Number and place value (P5) Number patterns and algebraic thinking (P3) |
Copyright details |
|
Organisation | NSW Department of Education |
Copyright | © State of New South Wales (Department of Education), 2020 Creative Commons Attribution 4.0, unless otherwise indicated. |
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