Trigonometry 1.0 Students understand the notion of angle and how to measure it, in both degrees and radians. They can convert between angles and radians.

Background

Over the past decade, many recommendations have been made that discuss the mathematical aspects of teacherpreparation [2, 6, 10, 25, 26]. The recommendations made by all of these groups support the idea that teachingmathematics well requires substantial knowledge and skill of a specialized nature – mathematical knowledge forteaching. Mathematical knowledge for teaching aligns with the notion that teachers who study subject matter inrelation to subject matter pedagogy are more effective [22]. Mathematics teachers need mathematical knowledge thatis organized for teaching, including deep understanding of the subject, awareness of barriers to learning, andknowledge of the roots of mathematical ideas and techniques