Presents hands-on activities to introduce the rhomboid and its parts. (ASK)

Introduces problems on rhombuses and dodecagons and their solutions. Emphasizes the angles and symmetric features of these geometric figures. (ASK)

Discusses the tessellation with circles and presents mathematics activities on tessellations with circles. (ASK)

Presents an activity using geoboards to recognize similar and different relationships of triangles. (ASK)

Discusses the benefits of integrating the history of mathematics into mathematics classes. Provides some worksheets for undertaking this task. (ASK)

Provides information about mathematician Jamshid al-Kashi and his work on calculating mathematical values such Pi or Sin(1). (ASK)

Presents an activity to identify some square-differences on the multiplication table. Discusses these properties using the Pythagorean triangle. (ASK)

Offers an alternative instructional method of constructing cubes based on the use of linking smaller cubes to form triangles. Offers learners insight into algebra by clearly exposing the underlying structure of the problem-solving process. (ASK)

Presents Ptolemy's theorem on geometry and its proof. (ASK)

Presents a problem and its solution on generating the complete set of triples of given sides of a triangle. Determines that students who work through the problem stand to learn a great deal more than just which particular triangles fit the given requirements. (ASK)