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Listed under:  Symmetry

### TIMES Module 21: Measurement and Geometry: rhombuses, kites and trapezia - teacher guide

This is a 32-page guide for teachers. It contains the definitions, properties and tests for rhombuses, kites and trapezia. Proofs of the properties and tests are given. Constructions for rhombuses, kites and trapezia are provided.

### TIMES Module 26: Measurement and Geometry: circle geometry - teacher guide

This is a 44-page guide for teachers. It contains theorems on chords, arcs, angles and secants associated with circles.

These seven learning activities, which focus on 'open-ended tasks' using a variety of tools (software) and devices (hardware), illustrate the ways in which content, pedagogy and technology can be successfully and effectively integrated in order to promote learning. In the activities, teachers use investigations in order ...

### Places for polygons - unit of work

This unit of work investigates the geometric properties of buildings to develop students’ understanding of polygons.

### Properties of polygons - unit of work

This unit of work develops students’ understanding of polygons.

### Symmetry: mobile devices - teacher resource

This teacher resource illustrates how students can create symmetrical patterns using mobile devices. Images can be selected, annotated and placed within applications (apps) loaded on mobile devices. The example demonstrates how a sequence of images can be created from a photograph of the Victory Gate in Vientiane, Laos. ...

### SpatialGenie symmetry - teacher resource

This teacher resource describes how students can explore and learn about symmetry through the use of learning objects L7803 'Finding symmetry: one line: city' and L7802 'Finding symmetry: two lines: city'. Students then apply their understanding and fluency by utilising the maps in the spatial visualisation tool, SpatialGenie ...