Websites Of the Week! - Celebrating Math
All of these and other sites are located here:
http://illuminations.nctm.org/Search.aspx?view=search&type=ac
Fraction Models
http://illuminations.nctm.org/tools/mlearner/phase%20two/content/fraction_models/index.html
Explore different representations for fractions including improper fractions, mixed numbers, decimals, and percentages. Additionally, there are length, area, region, and set models. Adjust numerators and denominators to see how they alter the representations and models.
Grouping and Grazing
http://illuminations.nctm.org/tools/mathresources/nctm_groupingandgrazing.html
Help the alien spaceship move cows into corrals by counting, adding, and subtracting..... learn grouping, tally marks, and place value.
Geometric Solids
http://illuminations.nctm.org/tools/mathresources/NCTM_GeometricSolids.html
Learn about various geometric solids and their properties. You can manipulate and color each shape to explore the number of faces, edges, and vertices, and you can also use this tool to investigate more.
Flashcard Math
http://ascendmath.com/fcm/html5/index.html
Coin Box
http://illuminations.nctm.org/tools/mathresources/nctm_coinbox.html
Learn how to count, collect, exchange, and make change for coins.
Dynamic Paper
http://illuminations.nctm.org/tools/mathresources/NCTM_DynamicPaper.html
Need a pentagonal pyramid that's six inches tall? Or a number line that goes from ‑18 to 32 by 5's? Or a set of pattern blocks where all shapes have one-inch sides? You can create all those things and more with the Dynamic Paper tool.
Equivalent Fractions
http://illuminations.nctm.org/assets/0/77/ed39bd77-5569-4fd2-bb1a-fb44d424cae5.swf
Create equivalent fractions by dividing and shading squares or circles, and match each fraction to its location on the number line.
Factorizing
http://illuminations.nctm.org/tools/mlearner/phase%20two/content/factorize/index.html
Visually explore the concept of factors by creating rectangular arrays. The length and width of the array are factors of your number.
Fractal Tool
http://illuminations.nctm.org/assets/0/77/2cc8cd7e-92d6-4ba5-93d9-4a79207f6dc2.swf
Play with shapes that grow, shrink, and change over several stages. Explore self-similarity and patterns in fractal measurements.
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