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Listed under:  Mathematics  >  Geometry  >  Shapes (Geometry)  >  Polygons  >  Triangles (Shapes)  >  Isosceles triangles

TIMES Module 13: Measurement and Geometry: construction - teacher guide

This is a 30-page guide for teachers that explains the central role of construction and presents examples of constructions.


TIMES Module 20: Measurement and Geometry: parallelograms and rectangles - teacher guide

This is a 17-page guide for teachers. It contains the definitions, properties and tests for parallelograms and rectangles. Proofs of the properties and tests are given. Constructions for parallelograms and rectangles are given.


Triangle Types

An interactive applet in which students classify triangles as isosceles, scalene and equilateral.