Students compare the sequence of objects seen from different points of view. For example, from the classroom window, the swings are to the left of the monkeybars, but the relationship is reversed if the objects are viewed from the blacktop facing the classroom. Students predict and draw what the shadow of an object placed between a light and a screen will look like. Explore relationships among shapes, such as congruence, symmetry, similarity, and self-similarity. Students explore symmetry by using mirrors with pattern blocks or by folding paper or by making inkblot designs.
Students find the lines of symmetry in the letters of the alphabet and in numerals.
They fold paper and cut out symmetric designs. They identify the symmetry in wallpaper or giftwrap designs. Students predict what shape they will see when they make various impressions of 3-dimensional objects in sand. For example, the top of a cylinder forms a circle, its side formsa rectangle. Students outline a triangle, a square, and a circle on the floor with string or tape.