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Tangrams 3 – exploring halves
Use tangram pieces and strategies such as visualising to explore the connection between fractions and surface area of 2D shapes. Then challenge students to explore all the different ways they can show half using a given rectangle.
|Year level(s)||Year 3, Year 4|
|Purpose||Teaching resource, Teaching strategies|
|Teaching strategies and pedagogical approaches||Questioning, Targeted teaching, Concrete Representational Abstract model|
|Keywords||rectangle, square, triangle, parallelogram, half,, area, visualising, surface area, shape, reasoning, problem solving, explicit teaching|
|Strand and focus||Number, Geometry, Measurement, Build understanding|
|Topics||Fractions, Shapes and objects|
|AC: Mathematics content descriptions||
ACMNA058 Model and represent unit fractions including 1/2, 1/4, 1/3, 1/5 and their multiples to a complete whole
ACMNA077 Investigate equivalent fractions used in contexts
|National numeracy learning progression||
Understanding units of measurement
NSW Department of Education
© State of New South Wales (Department of Education), 2020 Creative Commons Attribution 4.0, unless otherwise indicated.