【實用教育app】Pre-Calculus Trig Tutor|最夯免費app-綠色工廠好玩App

Learn Pre-Calculus Trigonometry by following teaching methods based on innovative new research on how our brains learn and remember new knowledge. Learn all about trigonometric expressions involving sine and cosine functions needed for Pre-Calculus. Test your understanding and knowledge by taking tests before and after the lessons. App will design custom made lesson plan for refreshing what you learn so you keep it fresh in your brain forever. Unique Visual based representations of unit circle to make users understand the hard to learn concept of sine and cosine relationships. Master Pre-Calculus Trigonometry with least amount of work!!!Let the App be your personal tutor for free!!!!