A directory of useful objects found on the web for teaching Maths.
Demonstration, Manipulative, Visualization
Primitives represents numbers in terms of their prime factors, offering unusual insights into their structure. Numbers are presented as nested sets of small black dots. Three is presented as a blue circle enclosing three dots; a ‘set of three’. Six is presented as a set of three sets of two dots, or as a set of two sets of three dots.
29 September 2013 Edit: 25 February 2014
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