1. Optimization - Getting the most for your money.
2. Trial and Error - Trying different things until you solve the problem.
3. Systems Approach - Breaking things into an input, process, output or feedback to see where the problem is.
4. Engineering Design Process - The design process is used to solve problems. It is listed as steps here. However, when you use it to solve a problem, you can jump from one step any other and back again.
Fantastic Contraption is a game where you build different contraptions to get a pink wheel into the goal.
Inventions at Play brings you Tinker Ball where you experiment with different objects to find out how many ways you can help the ball reach its goal.
Continuity is a totally addictive, mind-bending puzzle game with 32 levels! Have you got what it takes to make it to the end?