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Building Houses with Side View...	Perspective (3-D in 2-D) (Math 7)	Java Applet	Tool		[20]
This provides a visualization challenge. Front, right, and top views, and the number of blocks used, are shown; user constructs a block figure (dynamic, perspective drawing) to match (10 different fi... More: lessons, discussions, ratings, reviews,...
Cutouts, Nets	Platonic solids (Math 7)+	Java Applet	Tool		[17]
Dynamic net for constructing Platonic solids. Slider adjusts from flat to solid; it is interesting to see the shapes materialize from the flat nets. More: lessons, discussions, ratings, reviews,...
Geoboard	Measurement (Math 7)	Java Applet	Tool		[14]
Investigate, describe, and reason about the results of subdividing, combining, and transforming shapes using models and representations. Develop, understand, and use formulas to find the perimeter an... More: lessons, discussions, ratings, reviews,...
Algebra Balance Scales - Negat...	Algebra and expressions (Math 7)+	Java Applet	Tool		[8]
Solve simple linear equations using a balance beam representation. Coefficients and constants may be positive or negative. More: lessons, discussions, ratings, reviews,...
Building Houses	Perspective (3-D in 2-D) (Math 7)	Java Applet	Tool		[8]
Provides a "building pad" for constructing block houses. Building pad is dynamic; top, front, and side views of constructed objects are shown. More: lessons, discussions, ratings, reviews,...
Algebraic Reasoning	Algebra and expressions (Math 7)+	Flash	Tool		[7]
This program introduces students to fundamental concepts in algebra. Using two or three weighing scales, students must determine the weight of a specific object or group of objects. The program provid... More: lessons, discussions, ratings, reviews,...
Balloon Booths	Fractions (Math 7)	Java Applet	Technology PoW		[7]
Scale the size of a hot air balloon so you can make it fit through a narrow passage and hit a nail to pop it. Students are invited to use the link "Submit your answer" to share their solu... More: lessons, discussions, ratings, reviews,...
Grapher	Equations and functions (Math 7)	Java Applet	Tool		[5]
Using this virtual manipulative you may: graph a function; trace a point along the graph; dynamically vary function parameters; change the range of values displayed in the graph; graph multiple functi... More: lessons, discussions, ratings, reviews,...
Time - Match Clocks	Time (Math 7)	Java Applet	Tool		[5]
Users set the time on a digital clock to match the time displayed on an analog clock or vice versa. More: lessons, discussions, ratings, reviews,...
Runners	Rates (Math 7)	Java Applet	Technology PoW		[5]
Tell how a runner's step size predicts the time it takes to run from the building to the tree. A link to a Java applet from NCTM's Electronic Examples, Principles and Standards for School Mathe... More: lessons, discussions, ratings, reviews,...
Poly	Polyhedra (Math 7)+	Computer	Tool		[4]
Poly is a shareware program for exploring and constructing polyhedra. With Poly, you can manipulate polyhedral solids on the computer in a variety of ways. Flattened versions (nets) of polyhedra may b... More: lessons, discussions, ratings, reviews,...
Dimenxian	Linear relationships (Math 7)+	Computer	Tool	$	[4]
Students experience, explore, and apply math concepts in an engaging three-dimensional virtual world. The topics covered in Dimenxian include: coordinate system and scatter p... More: lessons, discussions, ratings, reviews,...
Tomography Game	Geometry in space (Math 7)+	Java Applet	Tool		[4]
This game challenges you to identify a three-dimensional object based only on its intersections with a plane. The height of this plane can be changed using a slider control. This simulation of a compu... More: lessons, discussions, ratings, reviews,...
Cubes	Volume (Math 7)	Java Applet	Tool		[4]
The volume of a box can be determined by using this applet to manipulate and enumerate unit cubes, rows of unit cubes, or layers of unit cubes. More: lessons, discussions, ratings, reviews,...
Bobbie Bear: Counting Strategi...	Combinations (Math 7)	Java Applet	Tool		[4]
The user can investigate how many different outfits can be made using different colored shirts and pants. More: lessons, discussions, ratings, reviews,...
Fractions - Naming	Writing fractions (Math 7)	Java Applet	Tool		[4]
Write the fraction corresponding to the highlighted portion of a shape. More: lessons, discussions, ratings, reviews,...
Number Line Bounce	Graphing on number line (Math 7)	Java Applet	Tool		[4]
This virtual manipulative can be used to visualize a sequence of operations on a number line and to create number sentences representing the operations. More: lessons, discussions, ratings, reviews,...
Types of Triangles	Triangles (Math 7)	Java Applet	Tool		[4]
This JavaSketchpad applet accompanies the tPoW, Types of Triangles. Students are able to drag and manipulate four triangles and by noticing what happens they classify the triangles as either scalene, ... More: lessons, discussions, ratings, reviews,...
Balance applets	Equations and functions (Math 7)	Java Applet	Tool		[3]
A series of balance applets of increasing difficulty. More: lessons, discussions, ratings, reviews,...
Towers of Hanoi	Writing powers (Math 7)	Java Applet	Tool		[3]
Solve the tower problem and test your theory by varying the number of disks. More: lessons, discussions, ratings, reviews,...
Fill and Pour	Cylinder (Math 7)+	Java Applet	Tool		[3]
Fill a glass with the requested amount of liquid by filling, emptying, and pouring between it and a second container. Click the "New Problem" button to generate new parameters; "Challenge" creates con... More: lessons, discussions, ratings, reviews,...
Colouring Sides 2	Perspective (3-D in 2-D) (Math 7)	Java Applet	Tool		[3]
Eight 3-d objects are shown in perspective and orthographic views. Some faces in the orthographic views are colored; user colors appropriate faces in the perspective view. Twenty variations shown, w... More: lessons, discussions, ratings, reviews,...
Adjustable Spinner	Probability of event (Math 7)+	Java Applet	Tool		[3]
Students can create a game spinner with one to twelve sectors to look at experimental and theoretical probabilities. More: lessons, discussions, ratings, reviews,...
Time - What Time Will It Be?	Time (Math 7)	Java Applet	Tool		[3]
Users manipulate the hands of a clock to indicate the time it will be before or after a given time. More: lessons, discussions, ratings, reviews,...
Create a Graph	Data analysis (Math 7)+	JavaScript	Tool		[3]
From the NCES Students' Classroom: fill in the data, and this tool will create a graph (bar, line, area, pie, or xy). Includes sample data. More: lessons, discussions, ratings, reviews,...
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