Lesson Plan
Curated OER

History of Television

For Teachers 2nd - 6th
Learners investigate the history of Television by using the Internet.  In this timeline instructional activity, students discuss and take notes on the 10 main events in Television history and create a timeline through education...
Lesson Plan
Curated OER

Exploring Special Segments in Triangles

For Teachers 9th - 12th
Young scholars discover that four special segments have a common intersection point. They identify the position of the intersection point in triangles. They produce conjectures about areas of the divided triangles.