Parallel or Perpendicular: Why Pupils Mix Them Up
Neatly upright lines hide the real concept. How to help pupils identify and check parallel and perpendicular lines.
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GeometryGeometry games for the interactive whiteboard
Recognizing a shape even when it is turned, and checking with tools rather than by eye.
Geometry
GeometryShape Hunt
Shapes scroll along three lanes. Tap the right ones before they get away.Beyond the “upright” shape
A square standing on its corner is still a square. Levels with turned shapes make pupils look at properties rather than orientation.
Checking with tools
A virtual set square, distance arrows, an explanation after each mistake: the games show how to check an answer.