Explore how the generalisation can be used as a mental calculation strategy using Known facts

In today's lesson, we will explore how the generalisation can be used efficiently as a mental calculation strategy using known facts.

Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

  • Click "Close Video"
  • Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

Lesson summary: Explore how the generalisation can be used as a mental calculation strategy using Known facts