You can already train an image model for hand gestures. Today in Scratch you will load that model into a rock, paper, scissors game and play against the computer.

Before you build, think: what might go wrong if the model is only slightly sure about a gesture? Open the project space you saved earlier and get ready to build step by step: predict, run, investigate, modify, then make it your own.

In this lesson, you will create a fun Rock, Paper, Scissors game using Scratch and Google Teachable Machine.

You will learn how to use your Teachable Machine Image model with rock, paper, and scissors hand gestures to play against the computer.

If you don't have a Teachable Machine Image model, don't worry! You can use the provided model.

Go to https://stretch3.github.io/ and start a new Scratch project and delete the Cat sprite.

Then, add the TM2Scratch extension by clicking on the Extensions button at the bottom left corner of the screen and selecting TM2Scratch. This extension allows you to use Google Teachable Machine Image models in your Scratch projects.

When you add this extension, it will automatically try and use your computer's camera. If necessary, click on 'Allow' to give it permission to use your camera. You should see what the camera is showing in the stage area.

Add a new sprite to the project that will represent the computer's choice in the game. You can choose any sprite you like, but for this example, we'll use the 'Gobo' sprite.

Create three new variables:

• playerChoice - to store the player's choice.
• computerChoice - to store the computer's choice.
• result - to store the result of the game.