This tool provides an excellent opportunity for students to talk about the names and attributes of shapes they do not regularly meet. For example, they will most likely encounter scalene triangles, with no congruent sides; isosceles triangles, with at least two congruent sides; and equilateral triangles, which are special isosceles triangles that have three congruent sides. When appropriate, point out to the students that rectangles are special parallelograms that have right angles, rhombuses are special parallelograms that have four equal sides, and squares are special rhombuses with four equal angles as well as four equal sides.
Young students have difficulty recognizing shapes that have been rotated or flipped. In Cutting Corners, students have opportunities to create and view shapes in different orientations.
The slide, turn, flip, and delete buttons can be used on any shape.
Click on the button and then on the shape or the cut line. The rotate button turns a shape 30° clockwise, or one-twelth of a complete rotation. The Flip button flips a shape over a horizontal line.
To turn off a button, either click on another button or click on the active button a second time.
Try to answer the following questions using this tool.
triangle
trapezoid
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