Much Better with a game!
A soldier can only shoot at a certain angle when he has enough superpower. But how does the superpower change? Play as the soldier, figure out what is happening to superpowers and destroy all the enemy installations.
Try out game based learning
Why learn with this game?
Apply Vs Read
Don't just memorise Trigonometric ratios. Instead apply them on fun problems.
Focus on Basics
Did you know that cosine is just complement of sine ? Learn using basic ideas and physical intuition!
Game levels are carefully designed to get you from absolute basic idea of Sine ratio to more complex angles.