**"Lesson Activities"**

## AUGUST 20 LESSON ACTIVITIES TO DEVELOP UNDERSTANDING AND SKILLS

*By toni On 18 August, 2018 · Leave a Comment*

Grade 7 TRANSFORMATION GEOMETRY

Grade 8 SURFACE AREA AND VOLUME

Grade 11 SINE AND COSINE RULES

Click on the links above for lesson activities in line with […]

## Grades 11 and 12 Solve the triangle

*By toni On 18 August, 2018 · Leave a Comment*

The area of triangle PQR is 3√3 square centimetres. Angle PRQ is 60 degrees and RQ is 4 centimetres longer than PR.

Find the length of PQ.

Draw ΔPQR accurately.

Calculate all the angles in the triangle.

## Grades 9 to 12 Same area

*By toni On 10 August, 2018 · Leave a Comment*

The rectangles shown are the same area. Find the area.

Make up some similar questions of your own.

Click here for the Notes for Teachers

## Grades 11 and 12 Kite

*By toni On 27 July, 2018 · Leave a Comment*

Take a sheet of A4 paper. First fold the top left corner to meet the bottom edge and press the fold flat. Then fold the top right corner to meet the edge that you folded down.

Can you prove that the quadrilateral you have made is a kite?

Can you find the perimeter of the […]

## Grades 8 and 9 Pizza

*By toni On 22 July, 2018 · Leave a Comment*

On Monday Dolly, Kapa and Lolo cut a pizza into equal sized pieces and share the pizza in the ratio 4 : 3 : 5. How many pieces were there and what fraction did each person get?

On Tuesday they buy a pizza of the same size and share it in the […]

## Grades 10 to 12 Line Match

*By toni On 1 July, 2018 · Leave a Comment*

Explain your findings about the four lines in this diagram and their gradients.

Match each sketch graph from column A below with a description and a fact about gradients from the other two columns.

Click here for the Notes for Teachers.

## Grades 9 to 12 Function Flow

*By toni On 1 July, 2018 · Leave a Comment*

The input to Function Machine 1 is x. Write down an expression for the output.

If the output is 7 what was the input?

In Function 2, a is constant. If the input is 4 what is the output?

The functions from Function Machines 1 & 2 are combined to give Function […]

## Grades 11 to 12 Coin in Slot

*By toni On 20 May, 2018 · Leave a Comment*

The line LP with equation y + x – 2 = 0 is a tangent at L to the circle with centre M(-4 , 4).

LN is a diameter of the circle.

LP is parallel to NQ where P is on the x-axis and Q is on the y-axis.

Find:

a) […]

## Grades 11 to 12 Cyclic

*By toni On 20 May, 2018 · Leave a Comment*

The diagram shows a circle centre O with points P, Q, R and S on the circumference. UST is a tangent to the circle. Angle RPS = 44º and angle PSO = 32º.

Find angles xº and yº.

## Grade 12 Derivative Matching

*By toni On 3 May, 2018 · Leave a Comment*

Match the functions with their derivatives and values of the functions and derivatives.

For cards to cut out and sort to do this activity click here.

What does this information tell you about the graphs of the 5 functions

For the Notes for Teachers click here.

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