Ohio Resource Center
 Law of Sines and Law of Cosines 1: Law of SinesORC# 7726Resource InformationResource Type: LessonsDiscipline: MathematicsGrades: Grades 9–12Professional Commentary: Students use right triangle trigonometry to develop the law of sines. An activity sheet, discussion questions, lesson extensions, and suggestions for assessment are included....MORE...
 Law of Sines and Law of Cosines 2: Law of CosinesORC# 7725Resource InformationResource Type: LessonsDiscipline: MathematicsGrades: Grades 9–12Professional Commentary: Students use right triangle trigonometry and the Pythagorean theorem to develop the law of cosines. An activity sheet, discussion questions, lesson extensions, and suggestions for assessment are included....MORE...
 Sine Law by Discovery: Direct Variation and TrianglesORC# 10176Resource InformationResource Type: Content Supports -- Activities and rich problemsDiscipline: MathematicsGrades: Grades 10–12Professional Commentary: Through guided discovery, students revisit the notion of two quantities x, y being directly proportional if they are related by a constant ratio y/x = k. This concept is reviewed through applications that confirm that a graph of directly varying quantities satisfies the form y = kx....MORE...