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Virtual Manipulatives

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Polymaps - Pavement Quality This example also uses a data visualization library called Protovis for color interpolation. Protovis is optional and not required to use Polymaps. Note that we’re not using Protovis to render anything—just data processing. Source Code Number Pieces by The Math Learning Center Overview Number Pieces helps students develop a deeper understanding of place value while building their computation skills with multi-digit numbers. Students can: Use number pieces to represent multi-digit numbers, regroup, add, subtract, multiply, and divide. Use edge pieces to display the dimensions of arrays created with number pieces.

The eClock - Learn all about time - Interactive Clock Digital On/Off Words On/Off Roman/Arabic To rotate the hands on the interactive e-Clock, move the cursor over the clock face, press the left mouse button down and move the mouse. Rotate the mouse clockwise around the centere of the e-Clock to move the time forward and move the mouse in an anticlockwise direction around the center of the eClock. to move time backwards. Notes Matematicas Visuales In MatematicasVisuales you will find visual expositions of mathematical concepts. MatematicasVisuales intends to complement the work initiated by artiludios, a site with games, puzzles and mathematical curiosities. Reading Miguel de Guzmán I found a demonstration of the line of Simpson and the Steiner Deltoid. It serves as an introduction to the geometry section.

Visual Number animated explorer,learn division,square & triangular The number explorer allows demonstration of the properties of any positive whole number of reasonable size. You can use large numbers, however in practice numbers up to 100 work best for showing division properties. Three different shapes can be used, the original fish swim around and obediently arrange themselves to show number properties. However balls or cards cards can be used instead, these animate faster and are better for displaying numbers. Manual Mode Slideshow Remote - LogicInMind Slideshow Remote™ combines two great tools in a single app: the most advanced remote control for PowerPoint and a brand new Keynote and PowerPoint mobile viewer. You can control your PC, transfer files with iTunes (Mac and Windows), open presentations attached to emails, view your slides, display on HDTV and share via AirPlay. Slideshow Remote takes full advantage of the new iPad Retina display and has more features than any other products, including similar iPhone applications and traditional USB remotes. Official Review "Slideshow Remote from LogicInMind finally puts the controls in your hand, and allows you to focus on what a presentation should really be about: presenting rather than wrestling with technology" Bonnie Eisenman, 148AppsRead the full review...

Fractions by The Math Learning Center How To Use Fractions Working with Fraction Bars and Circles More Toolbar Items Number Frames Overview Number Frames help students structure numbers to five, ten, twenty, and one hundred. Students use the frames to count, represent, compare, and compute with numbers in a particular range. The frames help students see quantities as equal groups of other quantities and in relation to benchmark quantities. This helps primary students move away from one-by-one counting toward more efficient ways of counting and computing. As students advance, custom frames can be constructed to help visualize factors, products, fractional parts and more. Free Mathematics Resources OnLine What about free graphing and algebra on your mobile phone? XCalc is a free Java Applet which offers a graphing calculator for any mobile phone which runs Java (which is nearly all of them now!) Think about the possibilities for classes that do not yet have access to graphing calculators! While limited (it does not yet have a trace facility) it DOES offer 2d and 3d graphing which is quite fast and powerful. Well worth a play! Now, combine that with quite a useful algebraic workpad that allows you to define variables and formulas and evaluate these.

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