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Q&A with course educators

Q&A with the National STEM Learning Centre Twice a year we will run an online Q&A with the Maths Subject Specialists at the National STEM Learning Centre. We will take …

Reflecting on your professional development

Well done for reaching the final part of the course, where you’ll review your learning and record your professional development. This step focuses on your reflection grids and revisits your …

Compound interest

The more common way to charge interest is called Compound Interest. Most loans are charged using compound interest and most savings accounts pay interest using compound interest. If you have …

Finding a percentage decrease

In this video we build upon the last step and consider two similar methods of finding a percentage decrease. When finding a percentage decrease we are asking the question: “by …

Simple interest

Probably one of the most common places we see percentages being used is with interest rates. Interest rates for savings accounts indicate the amount the bank pays you for every …

Finding a percentage increase

In this video we consider two similar methods of finding a percentage increase. Percentage increases, or decreases, are used to allow comparisons of different amounts in many situations, for example …

Decreasing by an amount

The methods for decreasing an amount by a percentage are adaptations of the previous methods for increasing by a percentage. Before watching the video you may like to consider how …

Increasing by an amount: further example

In the previous step we showed how to increase an amount by a percentage. Here we will identify a common mistake that occurs when increasing by small percentages i.e. an …

Increasing by a percentage

A common use for percentages is when amounts are increased, or decreased, by a percentage of that amount. For example, when buying a carton of orange juice, it might say …

Delving deeper into percentages

Last week, we explored methods to help divide fractions and decimals. This week we delve deeper into percentages. We build upon finding a percentage of an amount to consider how …