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History of trigonometry - part 3
The third of three articles on the History of Trigonometry.
problem
Big and small numbers in biology
14 to 16
Work with numbers big and small to estimate and calulate various quantities in biological contexts.
problem
Cross with the scalar product
16 to 18
Explore the meaning of the scalar and vector cross products and see how the two are related.
problem
Favourite
Egyptian fractions
11 to 14
The Egyptians expressed all fractions as the sum of different unit fractions. Here is a chance to explore how they could have written different fractions.
problem
Favourite
Rectangle tangle
7 to 11
The large rectangle is divided into a series of smaller quadrilaterals and triangles. Can you untangle what fractional part is represented by each of the shapes?
problem
Favourite
Ladybird count
5 to 7
Some children were playing a game. Make a graph or picture to show how many ladybirds each child had.
problem
Favourite
Fractions rectangle
11 to 14
The large rectangle is divided into quadrilaterals and triangles. Can you untangle what fractional part is represented by each of the ten numbered shapes?
problem
The Koch snowflake
16 to 18
Explore the strange geometrical properties of the Koch Snowflake.
problem
Favourite
Odd times even
5 to 7
This problem looks at how one example of your choice can show something about the general structure of multiplication.