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Plane Figure Teacher Resources
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Fourth graders are shown examples of three-dimensional figure attributes which include: depth, height, and width and are able to identify each shape. They observe a picture of an Egyptian pyramid and discuss its attributes. Students then compose riddles for as many three-dimensional shapes as they can think up.
Second graders explore triangles and quadrilaterals. They rotate to various centers in the room to identify and examine triangles and quadrilaterals. After presenting a picture to the class, 2nd graders locate right angles, triangles and quadrilaterals in the picture. They create patterns by gluing shapes onto a piece of paper. Students throw dice and draw lines around animals according to the number thrown.
Eighth graders study the important definitions that are include in the lesson including; polygons, perpendicular, bisector, chord, secant, and tangent. In guided practice they make segments with rulers and protractors, make angles with compasses and straightedges, and make bisectors with a compass. Finally, they apply the strategies when completing independent student practice.
Seventh graders investigate some concepts associated with geometric shapes. They study the bisector segment and the perpendicular line to a given line. Students conduct analysis with the goal of deepening observation and deduction skills. This is all done with careful consideration of the structure of geometric figures.