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Visit this site: http://sketchandcalc.com/

Description: 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)
Languages: English
Resource Types: Topic Tools Miscellaneous, Web Interactive/Java
Math Topics: Coordinate Plane Geometry

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