Summary
A tutorial introducing Scratch's face-sensing blocks, which use the webcam and on-device AI to detect where a face is and follow its expression -- a kid-friendly, hands-on first look at how AI face detection works.
Viewer safety
All ages
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Teaching resources
Discussion questions
Discussion
This video shows how face-sensing blocks let a sprite detect and follow a person's face.
- What does the face-sensing extension detect through the webcam?
- How is this similar to or different from the regular video-sensing extension?
- What's one project you could build that reacts to where your face is?
Quick work-a-long
Words to know: face sensing, detect, AI.
Try it: Add the face-sensing extension and make a sprite move to follow the position of your face.

