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Centroid of a Triangle - Math...	Triangles (Geometry)	Java Applet	Tool		[0]
A web page and interactive applet demonstrating the concept of the centroid of a triangle. The applet shows a triangle where the user can drag the vertices around. The centroid and the m... More: lessons, discussions, ratings, reviews,...
Linear Inequalities in Two Va...	Graphing (Algebra)	Shockwave	Tool	$	[0]
This site allows one access per day per computer free of charge. This applet allows students to graph up to six different linear inequalities in six different colors with solid or broken lines. The s... More: lessons, discussions, ratings, reviews,...
Parallelogram, definition and...	Parallelogram (Geometry)	Java Applet	Tool		[0]
A web page and interactive applet showing the definition and properties of a parallelogram. The applet shows a parallelogram, any vertex of which the user can drag. The other points then ... More: lessons, discussions, ratings, reviews,...
2D/3D Function Plotter	Graph functions (Math 7)+	JavaScript	Story		[1]
Middle school teacher Jeff LeMieux writes about how he uses the JavaScript page of Patrick Dostert's 2D/3D Function Plotter with his students. More: lessons, discussions, ratings, reviews,...
2D/3D Function Plotter	Graphing (Algebra)+	JavaScript	Tool		[0]
An on-line (JavaScript) plotting tool for creating 2D and 3D graphs from typed in algebraic expressions. This is version 2.92. See the story for the older version. More: lessons, discussions, ratings, reviews,...
3 Equations - 3 Unknowns Matri...	Solve by substitution (Algebra)+	JavaScript	Tool		[0]
This is a companion program to matrixpractice.htm [View Resource Connection below]. This program does not solve the 3 equations-3 unknowns system; rather it is a tool to help the student work t... More: lessons, discussions, ratings, reviews,...
3 Equations - 3 Unknowns Matri...	Solve by substitution (Algebra)+	JavaScript	Tool		[1]
One of the problems in dealing with three equations and three unknowns is a lack of practice problems. This script provides a new problem set each time which has integer answers. Another difficulty fa... More: lessons, discussions, ratings, reviews,...
3-D Object Viewer	Perspective (3-D in 2-D) (Math 6)+	Java Applet	Tool		[0]
Applet contains orthographic projections (static) and perspective drawings (dynamic) of 8 different objects; useful for building visualization skills. Toggle between "drawing" view and "3-d model" vi... More: lessons, discussions, ratings, reviews,...
3-D Visualization Activity: St...	Polyhedra (Math 7)+	Java Applet	Activity		[2]
Student handouts for critical thinking activity to accompany National Library of Virtual Manipulatives' Platonic Solids and Platonic Solids: Slicing applets. (view "Tool" links below) More: lessons, discussions, ratings, reviews,...
3-D Visualization Activity: Te...	Polyhedra (Math 7)+	Java Applet	Lesson Plan		[0]
Teacher notes for critical thinking activity to accompany National Library of Virtual Manipulatives' Platonic Solids and Platonic Solids: Slicing applets. (view "Tool" links below) Includes differenti... More: lessons, discussions, ratings, reviews,...
3-Way Percent Calculator	Percentages (Math 5)+	JavaScript	Tool		[0]
Enter the values into the expression to solve about percents, and the calculator will solve the problem. More: lessons, discussions, ratings, reviews,...
30 - 60 - 90 Triangles - Math ...	Right (Geometry)+	Java Applet	Tool		[0]
An interactive applet and associated web page that demonstrate the properties of a 30-60-90 triangle. The applet shows a right triangle that can be resized by dragging any vertex. As it is drag... More: lessons, discussions, ratings, reviews,...
3:4:5 Triangles - Math Open Re...	Right (Geometry)+	Java Applet	Tool		[0]
An interactive applet and associated web page that demonstrate the properties of a 3:4:5 triangle - one of the Pythagorean triples. The applet shows a right triangle that can be resized by draggin... More: lessons, discussions, ratings, reviews,...
3D Graph!	Functions, Graphs, and Limits (Calculus)	Computer	Tool		[0]
Draw 3D or 2D equations with this free graphing software for Windows XP/ ME/2000. To draw 3D or 2D graphs all that is required is filling in the equation of the form z=f(x, y). An older v... More: lessons, discussions, ratings, reviews,...
3DSurface Viewer	General (Calculus)+	Computer	Tool		[1]
3DSurface Viewer is a small Web application that creates high quality images of 3D surfaces defined by mathematical expressions. The quality of the images and the speed with which they are created ... More: lessons, discussions, ratings, reviews,...
4 Standard Types of Loci	Construction and loci (Geometry)	Java Applet	Tool		[0]
This allows students to explore 4 loci problems with a JavaSketchpad sketch: from 1 fixed point, from 1 fixed line, from 2 fixed points, and from 2 fixed lines. The students can manipulate the drawin... More: lessons, discussions, ratings, reviews,...
45-45-90 Triangles - Math Open...	Right (Geometry)+	Java Applet	Tool		[0]
An interactive applet and associated web page that demonstrate the properties of a 45-45-90 isosceles right triangle. The applet shows a right triangle that can be resized by dragging any vertex. ... More: lessons, discussions, ratings, reviews,...
A Better Fire!	Equivalent fractions (Math 5)+	Java Applet	Tool		[2]
See the chaos theory played out in forest fire simulations. More: lessons, discussions, ratings, reviews,...
A Brief Intro to Fathom	General (Probability & Statistics)	Fathom	Support Material		[0]
A brief introduction to Fathom Ross Isenegger used at an inservice for Grade 12 Data Management Teachers. More: lessons, discussions, ratings, reviews,...
A Closer Look at Earth, from S...	Patterns and sequences (Math 4)+	Flash	Tool		[1]
There are two activities for students to try: the Seasons Activity and the Scavenger Hunt. In the Seasons activity users order strips of the earth by month. Hints and scaffolds are built into the to... More: lessons, discussions, ratings, reviews,...
A Dynamic Proof	Pythagorean theorem (Math 7)+	Sketchpad	Activity		[0]
Students create a sketch in which a dramatic animation shows how the sum of the areas of two squares is equal to the area of the third square. The link to the activity itself is to a zip file tha... More: lessons, discussions, ratings, reviews,...
A Dynamic Proof	Pythagorean theorem (Math 7)+	Sketchpad	Tool		[0]
Students create a sketch in which a dramatic animation shows how the sum of the areas of two squares is equal to the area of the third square. The link to the tool itself is to a zip file that co... More: lessons, discussions, ratings, reviews,...
A Fractals Unit for Elementary...	Fractals (Math 4)+	Computer	Activity		[1]
A teaching unit on fractals for students and teachers in grades 4 to 8, that adults are free to enjoy, designed to introduce students to fractals and the underlying mathematics. It focuses on fractals... More: lessons, discussions, ratings, reviews,...
A Geometric Investigation of (...	Squaring binomials (Math 7)+	Java Applet	Tool		[0]
Explores a geometric explanation of why (A + B)^2 = A^2 + 2AB + B^2. More: lessons, discussions, ratings, reviews,...
A Geometric Proof of the Pytha...	Pythagorean theorem (Math 6)+	PowerPoint	Tool		[0]
This PowerPoint presentation uses animation and color to show a step-by-step geometric proof of the Pythagorean Theorem. It is assumed that students are already familiar with the theorem and its mean... More: lessons, discussions, ratings, reviews,...
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