Tangrams 3 – exploring halves Image

Please note: This site contains links to websites not controlled by the Australian Government or ESA. More information here.

Go to website

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, Space, Measurement, Build understanding
Topics Fractions, Shapes and objects
AC: Mathematics (V9.0) content descriptions

Recognise and represent unit fractions including 12, 13, 14, 15 and 110 and their multiples in different ways; combine fractions with the same denominator to complete the whole

Find equivalent representations of fractions using related denominators and make connections between fractions and decimal notation

Numeracy progression Interpreting fractions (P5)

Copyright details


NSW Department of Education


© State of New South Wales (Department of Education), 2020 Creative Commons Attribution 4.0, unless otherwise indicated.