You may also like

problem icon

A Brief History of Time Measurement

Noticing the regular movement of the Sun and the stars has led to a desire to measure time. This article for teachers and learners looks at the history of man's need to measure things.

problem icon

In Order

Can you rank these quantities in order? You may need to find out extra information or perform some experiments to justify your rankings.

problem icon

The Time Is ...

Can you put these mixed-up times in order? You could arrange them in a circle.

Order, Order!

Stage: 2 Challenge Level: Challenge Level:1
How could you estimate each of the quantities?
What extra information might you need to find out?