CK-12 Foundation
Ck 12: Geometry: Arcs in Circles
[Free Registration/Login may be required to access all resource tools.] In this lesson students apply the properties of arcs and central angles. Students examine guided notes, review guided practice, watch instructional videos and...
Khan Academy
Khan Academy: Introduction to Japan
Japan is an island country consisting of four major and numerous smaller islands. The islands lie in an arc across the Pacific coast of northeastern Asia, forming a part of the volcanic "Rim of Fire." From north to south this chain of...