Arthur Lee, Hisham Amir @ Wavelink, May 11, 2018

Trigonometric Ratios and Functions

introduce trigonometric ratios in Key Stage 3 (junior secondary level), focusing on sides and ratios in right triangles

• 1. Introduction to Sine
• 2. Trigonometric Ratios: Sine 三角比：正弦
• 3. Introduction to Cosine & Tangent
• 4. Trigonometric Ratios: Cosine & Tangent 三角比：餘弦和正切
• 5. Simple Sine Table
• 6. Sine and Cosine Table
• 7. recognise trigonometric ratios
• 8. Quiz on Trigonometric Ratios 辨認三角比：測驗
• 9. trigonometric ratios for all angles
• 10. 任意角的三角比
• 11. Regiomontanus

define trigonometric functions for angle of rotation

• 1. Trigonometry and Polar Coordinates
• 2. Random point with trigonometric details
• 3. Polar and Rectangular
• 4. Introduction to Polar Coordinates 極坐標簡介
• 5. 極坐標測驗
• 6. polar and spiral
• 7. Proof without words: Cosine Rule (餘弦公式)

create patterns, animation, drawing using trigonometric and other functions/graphs

• 1. Sinimation
• 2. sine curve rotated
• 3. Cosine Shift
• 4. Dot Pattern 1
• 5. Dot Pattern 2
• 6. Dot Pattern 3
• 7. Happy Halloween
• 8. Halloween with sound
• 9. sun and sea
• 10. Moon and Sea