**"Equations"**

## Grades 10 to 12 Expansion of brackets. Area and quadratic equations.

*By Kwethemba Moyo On 15 August, 2019 · Leave a Comment*

Find the area of a rectangle whose dimensions are: (2x + 3) by (x + 1).

Sketch and label the rectangle whose dimensions are: (2x + 3) by (x + 1)

How do we calculate the area of a rectangle?

Can partitioning (subdividing) the rectangle into simpler units help us? Find the areas of these […]

## Grades 6 to 8 Bananas, Clock, and Hexagon

*By Tejumade Ogundipe On 12 August, 2019 · Leave a Comment*

## Grades 6 to 8 Beautiful Numbers

*By toni On 5 October, 2017 · Leave a Comment*

Work out the different numbers to replace the question marks.

What do you notice about the patterns in these calculations?

Can you explain why this pattern occurs?

## Grades 8-10 Interpreting Equations

*By Ben Walker On 9 January, 2017 · Leave a Comment*

This lesson is about moving between algebraic equations and the statements that they represent. This activity should be given to the class as a formative assessment activity: it is designed to provide the teacher with information about the learners’ current levels of understanding.

During a short introduction the teacher emphasises the importance of defining […]

## Grades 7 to 10 Paper Weight

*By toni On 13 November, 2016 · Leave a Comment*

The graph shows how the weight of a letter (including the envelope) varies with the number of sheets of paper used.

What is the weight of a single sheet of paper?

What is the weight of the envelope?

If w is the weight of the letter (including the envelope) and s is […]

## Grades 7 to 9 Temperature

*By toni On 25 October, 2016 · Leave a Comment*

In some countries temperature is measured in degrees Celsius (originally called degrees Centigrade) and in other countries it is measured in degrees Fahrenheit.

The freezing point of water is 0 degrees Celsius and 32 degrees Fahrenheit.

The boiling point of water is 100 degrees Celsius and 212 degrees Fahrenheit.

Draw a graph […]

## Grades 7 to 9 Letter Land Puzzle

*By toni On 11 August, 2016 · Leave a Comment*

The letters A, B, C, D, E, F, G and H correspond to the numbers from 0 to 7 with no repetitions.

Use the clues that A+C=A and F×D=F to find the values of two letters.

Use the clues B−G=G and B/H=G to find the value of another three letters.

Use the clues A+H=E […]

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