Get further into power series using the fascinating Bessel's equation.

Use your skill and knowledge to place various scientific lengths in order of size. Can you judge the length of objects with sizes ranging from 1 Angstrom to 1 million km with no wrong attempts?

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

Look at the advanced way of viewing sin and cos through their power series.

Which line graph, equations and physical processes go together?

Work out the numerical values for these physical quantities.

Get some practice using big and small numbers in chemistry.

This is our collection of tasks on the mathematical theme of 'Population Dynamics' for advanced students and those interested in mathematical modelling.

See how enormously large quantities can cancel out to give a good approximation to the factorial function.

Many physical constants are only known to a certain accuracy. Explore the numerical error bounds in the mass of water and its constituents.

By exploring the concept of scale invariance, find the probability that a random piece of real data begins with a 1.

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

Build up the concept of the Taylor series

Was it possible that this dangerous driving penalty was issued in error?

The probability that a passenger books a flight and does not turn up is 0.05. For an aeroplane with 400 seats how many tickets can be sold so that only 1% of flights are over-booked?

Here are several equations from real life. Can you work out which measurements are possible from each equation?

Which units would you choose best to fit these situations?

Why MUST these statistical statements probably be at least a little bit wrong?

Go on a vector walk and determine which points on the walk are closest to the origin.

Which dilutions can you make using only 10ml pipettes?

Make an accurate diagram of the solar system and explore the concept of a grand conjunction.

Invent scenarios which would give rise to these probability density functions.

Are these statistical statements sometimes, always or never true? Or it is impossible to say?

Can you suggest a curve to fit some experimental data? Can you work out where the data might have come from?

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

Match the descriptions of physical processes to these differential equations.

Explore the possibilities for reaction rates versus concentrations with this non-linear differential equation

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

Each week a company produces X units and sells p per cent of its stock. How should the company plan its warehouse space?

What functions can you make using the function machines RECIPROCAL and PRODUCT and the operator machines DIFF and INT?

Use the computer to model an epidemic. Try out public health policies to control the spread of the epidemic, to minimise the number of sick days and deaths.

To investigate the relationship between the distance the ruler drops and the time taken, we need to do some mathematical modelling...

In which Olympic event does a human travel fastest? Decide which events to include in your Alternative Record Book.

Analyse these beautiful biological images and attempt to rank them in size order.

Explore the properties of matrix transformations with these 10 stimulating questions.

Use trigonometry to determine whether solar eclipses on earth can be perfect.

Explore the meaning of the scalar and vector cross products and see how the two are related.

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

Explore the relationship between resistance and temperature

Formulate and investigate a simple mathematical model for the design of a table mat.

How would you go about estimating populations of dolphins?

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

How is the length of time between the birth of an animal and the birth of its great great ... great grandparent distributed?

Andy wants to cycle from Land's End to John o'Groats. Will he be able to eat enough to keep him going?

Where should runners start the 200m race so that they have all run the same distance by the finish?

Match the charts of these functions to the charts of their integrals.