Subtangent is a website of free interactive mathematics resources. This collection includes interactive investigations, games activities to test mathematical knowledge and resources for printing. The majority of the resources are suitable for Key Stages Two to Four. Some would be useful as whole class introductions or demonstrations on an interactive whiteboard.



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These investigations from Subtangent help to develop a systematic approach but require students to use their own recording methods. They can be used as a whole class introduction to an investigation or as individual tasks. As these investigations are open ended and students can make their own decisions as to the...


Subtangent's resources for mathematics include different types of isometric grids which can be printed, a set of lesson starter activities, a variety of worksheets to practice arithmetic skills and graph paper with axes and different quadrants labelled, all of which can be printed freely.

The lesson starters...