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Students are challenged to apply compound percentage changes to calculate an original amount after a percentage change, a percentage rate and compare real-life investments.

There are five problems that link to money, setting up equations and rules of indices.

All solutions are included are modelled through video.

September 15, 2020

How to introduce the sin, cos and tan trigonometric identities.

September 3, 2020

How to teach calculating the original amount after a percentage change.

August 25, 2020

The importance of the range when comparing comparing datasets.