Lesson 4 - Real-life problems involving percentages

Task 1

• Watch the video, Calculator percentages.

• In your exercise book or folder, write out the steps needed for your particular calculator.

Task 1

• Watch the video, The Unitary Method (1 of 2: Introduction and Example).

• In your exercise book or folder, write out the steps to the example as you follow on with the video.

Task 2 - Practice with Geogebra

Practice your unitary method calculations using the Geogebra applet.

• Open the applet in a new tab by clicking on the image.

• Try as many times as you like until you feel comfortable with the process

Task 1

• Watch the video, The Unitary Method (1 of 2: The Potato Puzzle).

  • In your exercise book or folder, write out the steps that Eddie has outlined in the video.

  • Can you see the problem in Mr Woo's working out? Circle the error/s and explain what he should have done instead.