A directory of useful objects found on the web for teaching Maths.
http://www.brainingcamp.com/legacy/content/concepts/rounding/
Interactive, Manipulative, Publisher, Brainingcamp
This free sampler from Brainingcamp includes a lesson, manipulative, questions and problems.
Discover how rounding is a process which produces another number that is close to the original number. Learn how to round numbers up or down to the nearest rounding number.
2 July 2014 Edit: 2 July 2014
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