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Math » Number & Operations
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Image of two squares

Math Forum provides high-quality math education content. The site features a problem of the week for...
An icosahedron where each of the 12 vertices lies on the vertex of one of three golden rectangles.

MathTools offers hundreds of online tools, lesson plans, and learning activities for teaching and...
Take a equilateral triangle, divide each side into 4 segments. Then connect the each vertex to division points on the opposite sides as you observe.

InterMath is designed to help middle school teachers deepen their understanding of math concepts...
GeoGebra is a free and multi-platform dynamic mathematics software for schools that joins geometry, algebra and calculus.

Journal of Online Mathematics and its Applications offers articles, learning modules, "mathlets" (single-purpose learning tools), reviews of...

National Science Foundation

National Science Foundation

National Science Foundation

National Science Foundation
  See All 15 Number & Operations Resources  

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