Video games nowadays are complicated. Many of them cost millions of dollars to make and require a team of dozens or even hundreds of people. For an aspiring video game developer, it can seem a bit overwhelming. If you wanted to make a video game, how would you even start?

In this lesson students apply geometric transformations to build (and play) their own video games.

### Students will

• Apply translations, rotations, reflections, and dilations to solve a simple game
• Analyze a level to see which transformations are required and which are optional
• Create a challenge that requires another player’s use of the different transformations

### Before you begin

Students should be familiar with the concept of a rotation and a reflection, though they need not know how they are typically used mathematically – that can be introduced here. This can act as an introduction to the various transformations. Students need to know how many degrees are in certain angles (such as right angles or 45° angles), including how many degrees are in a circle.