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Your search returned 6 results

Listed under:  Mathematics  >  Geometry  >  Shapes (Geometry)  >  Polygons  >  Irregular polygons
Online

Shapes and objects: Year 4 – planning tool

  • TLF-IDA003189

This planning resource for Year 4 is for the topic of Shapes and objects. Students build on their knowledge of shape by combining and cutting 2D shapes.

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Video

Volume and mathematical modelling video

  • TLF-IDA003095

Use this video as a springboard to explore volume of composite shapes, adjusting numbers to make calculations friendlier and draw on reasoning and mathematical modelling.

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Online

Volume and surface area: Year 10 – planning tool

  • TLF-IDA003238

This planning resource for Year 10 is for the topic of Volume and surface area. Students extend their application of volume and surface area to solve problems on composite solids. Students will need to be able to visualise the individual elements of the composite solids and identify the areas where these elements touch.

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Online

reSolve: Geometry: Trapezium Pieces

  • TLF-IDM021834

This lesson explores different shapes that can be formed by cutting a trapezium in two with one straight line. Students are challenged to classify and name the shapes that are made, and justify their classifications based on the definitions and properties of shapes. The lesson is outlined in detail including curriculum ...

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Online

reSolve: Authentic Problems: Expanded Square

  • TLF-IDM024876

This sequence of four lessons explores concepts around informal area and symmetry. Students design an 'expanded square' where approximately half the area of the original square is flipped to the outside. The lessons provide opportunities for students to devise and use methods to informally measure area, record their mathematical ...

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Online

reSolve: Rectilinear Polygons

  • TLF-IDM025324

In this sequence of three lessons, students use geometric reasoning to establish relationships between angles in polygons and go on to make generalisations using algebraic expressions. Students explore and enumerate right angles in a series of rectilinear polygons and generalise their findings. They then explore the number ...

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