Curated OER
Delta, Delta, Delta
Students construct equilateral triangles and a 'laser' triangle. In this reflection instructional activity students build a retro-reflector using mirrors.
Curated OER
Pythagorean Theorem Spreadsheet
Studetns use a spreadsheet to organize data on the sides of a triangle. They use the Pythagorean Theorem and the If then spreadsheet function to decide whether the three sides determine a right triangle. Students work individual...
Curated OER
DISCOUNT LENSES ( GELATIN WAVE GUIDES)
Students study attributes associated with concept of fiber optics is done using a labmade fiber optic from clear molded gelatin. A variety of shapes can be cut and pieced together to form a conduit to transmit the laser beam by internal...
Curated OER
Topos, Compasses, and Triangles, Oh My!
Students triangulate using a compass, topographical (topo) map and a view of outside landmarks. They take a field trip to another location away from school and mark discernible landmarks (like mountains or radio towers) and changes in...
Curated OER
Light Bounce
Students solve problems involving triangles. In this geometry instructional activity, students apply properties of triangles to find the missing angles and sides. They identify angles of parallel lines cut by a transversal.