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An Activity-Based Approach to the Cosine Law.
Peer reviewed Peer reviewed
O'Shea, Thomas – School Science and Mathematics, 1993
Presents a teaching model as an activity to introduce preservice secondary mathematics teachers to the law of cosines. The activity is student-centered in which students construct figures; measure angles and segments; calculate areas; investigate relationships; and communicate their results. (MDH)
Descriptors: Integrated Activities, Learning Activities, Mathematical Formulas, Mathematics Education