These resources are designed to support teaching and learning about the use of simple geometry and calculation. The first and second lessons investigate the properties of triangles and how these were used for practical purposes in measurement by Muslim scholars. The third and forth lessons investigate the use of zero and place value in the Arabic numeral system and how this aids calculation in comparison with the Roman numeral system.
Please note that some of resource downloads require the use of Adobe Acrobat Reader, Microsoft PowerPoint or Microsoft Excel to view the files.
To download Adobe Acrobat Reader, go to http://www.adobe.com/products/acrobat/readstep2.html
To download Microsoft PowerPoint Viewer 2003 or Microsoft Excel Viewer 2003, go to
Author: Andrew Leather
Background and lesson plans [pdf]
Triangles [pdf] [PowerPoint]
Triangles and Islam [pdf] [PowerPoint]
Umbra Recta [pdf] [PowerPoint]
Umbra Recta (document) [pdf]
Multiplication spreadsheet [Excel]
Roman and other numeral systems [Excel]
If you have any comments or queries about these resources, please contact the Education Officer responsible for secondary schools.
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