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A directory of useful objects found on the web for teaching Maths.
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Space and Geometry
Topic:
Triangles
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Alice in FractalLand
All Triangles are Equilateral - Numberphile
Area of a trapezium
Area of triangles
Byrne’s Euclid
Doodling in Math Class: Triangle Party
Exploring Angles within a Triangle - Maths Interactives
Exterior angles
Five Pointed Star Puzzle
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Resources on MathsFaculty
The area of a triangle
Explanation | PDF
Toothpick Puzzle
Activity, Hands-on, Poster | PDF
Constructing Triangles
Activity, Worksheet - Print | PDF
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Space and Geometry
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