Website includes lesson plans for high school problem-solving projects. Lesson plans are very detailed and include introduction to activity, timeline, and closure activity. Also included are student handouts. This website also contains a...

Links to 6 lessons and activities that build student skills in standard W.3.3d: Provide a sense of closure.

Based off of the hit television show NUMB3RS, this lesson has students examine a set of transformations to determine if certain properties (such as associativity and closure) exist for equilateral triangles. Students create tables of...