### There are 17 results

Broad Topics >

STEM mapping > STEM - Estimation

##### Age 14 to 16 Challenge Level:

Practise your skills of proportional reasoning with this interactive haemocytometer.

##### Age 11 to 14 Challenge Level:

Examine these estimates. Do they sound about right?

##### Age 14 to 18 Challenge Level:

Estimate these curious quantities sufficiently accurately that you can rank them in order of size

##### Age 11 to 16 Challenge Level:

Work with numbers big and small to estimate and calculate various quantities in biological contexts.

##### Age 14 to 16 Challenge Level:

Work out the numerical values for these physical quantities.

##### Age 14 to 16 Challenge Level:

Work with numbers big and small to estimate and calulate various quantities in biological contexts.

##### Age 11 to 14 Challenge Level:

Is this eco-system sustainable?

##### Age 14 to 16 Challenge Level:

Which units would you choose best to fit these situations?

##### Age 14 to 16 Challenge Level:

How many generations would link an evolutionist to a very distant
ancestor?

##### Age 14 to 16 Challenge Level:

When you change the units, do the numbers get bigger or smaller?

##### Age 14 to 16 Challenge Level:

Could nanotechnology be used to see if an artery is blocked? Or is this just science fiction?

##### Age 14 to 16 Challenge Level:

How much energy has gone into warming the planet?

##### Age 14 to 16 Challenge Level:

How would you go about estimating populations of dolphins?

##### Age 14 to 16 Challenge Level:

Are these estimates of physical quantities accurate?

##### Age 14 to 16 Challenge Level:

Work with numbers big and small to estimate and calculate various quantities in physical contexts.

##### Age 14 to 16 Challenge Level:

Is it really greener to go on the bus, or to buy local?

##### Age 11 to 14 Challenge Level:

Can you rank these sets of quantities in order, from smallest to largest? Can you provide convincing evidence for your rankings?