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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.

Additional details
Year level(s)	Year 3, Year 4
Audience	Student, Teacher
Purpose	Teaching resource, Teaching strategies
Format	Video
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
Curriculum alignment
Curriculum connections	Numeracy
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	Interpreting fractions - InF2, InF3 Understanding units of measurement
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.