Start to explore ideas of Fibonacci numbers and the golden ratio by copying the picture and drawing this spiral which is made up of quarter circles. Watch this inspirational video.
Then create your own elephant. The numbers in the centres of the squares give the radii of the quarter circles […]
Find the area and circumference of the circle.
Find the area and the perimeter of the triangle.
What do you notice about the ratios of the two areas and the ratios […]
On Tuesday they buy a pizza of the same size and share it in the […]
The squares in the diagram are to help us visualise an infinite geometric sum and we are not summing the areas of the squares, simply the lengths along the x-axis. The squares have side lengths given by powers of r: where 0 < r < 1 .
You can mix the paints to produce different shades of pink. Explain how to find the ratio of […]