Mathland Project Ideas: 1. Grade 9: Provide the rest of the script for Giga to say so that the sine function's relation to the unit circle is explained. 2. Grade 10 - 12: Students at this level could write this program from scratch, and/or write one that explains other trigonometric functions. ** Curriculum connections: Ontario Mathematics Grade 10, 11, 12
!! This project was coded without using any built-in trigonometric functions in Scratch. !! The unit circle, triangles, and sine wave are drawn using simple code blocks that control the movements of coloured points, and related line segments, in specific ways that can be measured and plotted. Curious about sine or trigonometry? Check this out: https://betterexplained.com/articles/intuitive-understanding-of-sine-waves/ Interactive unit circle: http://www.mathsisfun.com/algebra/trig-interactive-unit-circle.html
