Bank Shot: Angle Golf

A mini golf game where every hole opens with a bank-shot angle problem: the wall's known angle is shown, you solve for its complementary or supplementary partner angle, then drag from the ball to aim and set power. A correct answer sends the ball exactly where you aimed; a wrong answer deflects the shot by your own error. Real physics - hills, water currents, bushes, wall bounces - carries every shot after that. Play Golf Gamer (easy) or Hole-In-One Hero (hard) mode across a random 9-hole themed course.

Teaching Notes for Educators

Students find the missing angle in a complementary or supplementary pair, then use it to aim a mini golf shot off a wall.

The math: complementary angles add to 90° and supplementary angles add to 180°. A shot aimed at a wall asks for the supplementary angle (the ball's path and the wall make a straight line); a straight shot into open green asks for the complementary angle (a right angle with the aim line as one side).
Visible consequence: a correct answer bounces the ball like a mirror along the aimed path; a wrong one sends it off the wall at the typed angle. The student's number is drawn as a red wedge next to the known angle, with a gap if it is too small or an overflow if it is too big, and a card adds the two angles to show they miss the total.
Retry with hints: after a miss, a short explanation appears (without the answer) and the same question is asked again with a hint about the 90° or 180° total; a second miss adds the equation with a blank.
Algebra on the back nine: Hole-In-One Hero gives some wall angles as expressions like (2x + 10)° with x provided, so students substitute and evaluate before solving.
Real life: a ball, a billiard cue ball, a laser, or a sound wave leaves a wall at the same angle it arrived, and angle pairs like these guide roof framing, carpentry, and any layout with corners.
Built-in progression: wall angles move from multiples of 10 to multiples of 5 to any whole number, and the hard mode adds a countdown clock (running out of time counts as a miss).