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|Original math primers organized into "for the very young" (numbers, angles, and games); patterns and shapes (symmetry, tessellations, and solid shapes with nets, pictures, and facts); numbers (Egyptian, Babylonian, Chinese, Greek, Roman, Mayan and Arabic numbers); data (interactive pictograms, graphs, mean/median/mode, sorting); calculating machine s(abacus, Napier's bones, slide rule, logs, calculators); interesting numbers (0, 1, i, √2, golden ratio, e, π, googol, infinity); finger systems (for counting and calculating using your fingers); and probability and logic puzzles "for older children (or adults)." See, in particular, her collection of popular songs based on numbers and tables of numbers for counting sheep, with the 1-10 in Welsh and in dialects used by old shepherds in Northumberland and Borrowdale. Edkins' interactive content includes tools for making your own tessellations, patterns, or snowflakes online; convertors for counting or converting in bases 2-36; and an introduction to Euclid with clickable proofs that proceed line-by-line.|
|Levels:||Elementary, Middle School (6-8), High School (9-12)|
|Resource Types:||Games, Problems/Puzzles, Fun for Kids, Tutorials, Web Interactive/Java|
|Math Topics:||Basic Operations, Number Sense/About Numbers, Polyhedra, Euclidean Plane Geometry, Symmetry/Tessellations, Logic/Foundations, Data Analysis, Probability, Topology|
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