Thumbs on Fire

How fast are those thumbs? Pupils view a short video showing a person typing out a text message in a speed challenge. They use the information they can glean from the video to estimate the number of seconds it will take to completely type the message shown.

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CCSS: Designed
Instructional Ideas
  • Use the resource as part of the closure section of a lesson on proportional relationship
Classroom Considerations
  • Scholars should have experience with rates and proportional relationships
  • Knowledge of estimation strategies is necessary
Pros
  • Highlights the relevance of mathematics to daily life
  • Includes the answer in the form of a video
Cons
  • None