★This is a unique way to teach students or review geometry (types of lines (parallel, perpendicular, rays, line segments, angles (obtuse, acute, right/perpendicular), shapes (triangles, squares, rectangles, rhombus', trapazoids, pentagons, hexagons, octagons) etc.I have my students come up to the Smart Board and find the shapes, lines and angles and then I reveal the answer slides.★You can have your students go outside to a playground and explore shapes, angles, and lines to integrate the slides