*** Summer 2015 - Word version of Workbook added.***
I think this is pretty much all you'll ever need on the topic of Triangular Numbers - with 11 self-contained, graded worksheets!
It uses animated PowerPoint presentations to drive the session with links to web-based videos and music where appropriate, and is accompanied with a Workbook containing self-contained Worksheets, ordered by level of difficulty, with a separate section containing answers for teachers.
The FREE PREVIEW File gives:
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