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|On interactive graph paper, sketch straight lines by clicking the pencil icon — or curved ones by selecting the fountain pen nib — then login to calculate the area and perimeter of the shapes constructed. The gear icon in the upper-right corner lets you import an image or PDF over the grid lines. Tracing over a Google Map sets the scale of the drawing canvas automatically, but SketchAndCalc™ also allows for toggling scale and units and keyboard input of lengths.|
|Levels:||Elementary, Middle School (6-8)|
|Resource Types:||Topic Tools Miscellaneous, Web Interactive/Java|
|Math Topics:||Coordinate Plane Geometry|
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