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### Number and algebra

### Geometry and measure

### Probability and statistics

### Working mathematically

### For younger learners

### Advanced mathematics

# Biology

### Discuss and Choose

### Terrariums

### Maths Is Everywhere!

### Big and Small Numbers in the Living World

### Bigger or Smaller?

### Packing 3D Shapes

### The Genes of Gilgamesh

### Dilution Series Calculator

### Exact Dilutions

### Bio Graphs

### Time to Evolve

### Biology Measurement Challenge

### Big and Small Numbers in Biology

### Ratios and Dilutions

### Mixed up Mixture

### Disease Dynamics - understanding the spread of diseases

### Peas in a Pod

### Robot Camera

### Alternative Record Book

### bioNRICH

### Core Scientific Mathematics

### chemNRICH

### Advanced STEM

### Predator - Prey Systems

### Population Dynamics - Part 2

### Population Ecology Using Probability

### Mathematical Issues for Biologists

### Chi-squared Faker

### Genetic Intrigue

### Population Dynamics

### Stats Statements

### Why Multiply When You're about to Divide?

### Population Dynamics - Part 4

### Bird-brained

### Population Dynamics - Part 1

### Blood Buffers

### Reaction Types

### Graphic Biology

### Branching Processes and Extinction

### Population Dynamics Collection

### Drug Stabiliser

### Is Your DNA Unique?

### Population Dynamics - Part 6

### Fitting Flat Shapes

### Extreme Dissociation

### Population Dynamics - Part 3

### Population Dynamics - Part 5

### Catalyse That!

### Real-life Equations

### Whose Line Graph Is it Anyway?

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This collection of STEM resources is based on the living world. Resources are listed in order of stage.

Age 5 to 11

Challenge Level

This activity challenges you to decide on the 'best' number to use in each statement. You may need to do some estimating, some calculating and some research.

Age 11 to 14

Challenge Level

Build a mini eco-system, and collect and interpret data on how well the plants grow under different conditions.

Age 11 to 16

Challenge Level

Maths is everywhere in the world! Take a look at these images. What mathematics can you see?

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

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

Age 14 to 16

Challenge Level

What 3D shapes occur in nature. How efficiently can you pack these shapes together?

Age 14 to 16

Challenge Level

Can you work out the parentage of the ancient hero Gilgamesh?

Age 14 to 16

Challenge Level

Which dilutions can you make using 10ml pipettes and 100ml measuring cylinders?

Age 14 to 16

Challenge Level

Which exact dilution ratios can you make using only 2 dilutions?

Age 14 to 16

Challenge Level

What biological growth processes can you fit to these graphs?

Age 14 to 16

Challenge Level

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

Age 14 to 16

Challenge Level

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

Age 14 to 16

Challenge Level

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

Age 14 to 16

Challenge Level

Scientists often require solutions which are diluted to a particular concentration. In this problem, you can explore the mathematics of simple dilutions

Age 14 to 16

Challenge Level

Can you fill in the mixed up numbers in this dilution calculation?

Age 14 to 16

A chance to explore the mathematics of networks as applied to epidemics and the spread of disease.

Age 14 to 16

Challenge Level

What is the chance this pea plant will look like its parents?

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 18

Challenge Level

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

Age 14 to 18

Challenge Level

bioNRICH is the area of the stemNRICH site devoted to the mathematics underlying the study of the biological sciences, designed to help develop the mathematics required to get the most from your study of biology at A-level and university.

Age 14 to 18

Challenge Level

This is the area of the advanced stemNRICH site devoted to the core applied mathematics underlying the sciences.

Age 14 to 18

Challenge Level

chemNRICH is the area of the stemNRICH site devoted to the mathematics underlying the study of chemistry, designed to help develop the mathematics required to get the most from your study of chemistry at A-level and university.

Age 14 to 18

Challenge Level

This collection of resources is designed for developing STEM at Post-16.

Age 16 to 18

Challenge Level

See how differential equations might be used to make a realistic model of a system containing predators and their prey.

Age 16 to 18

Challenge Level

Second in our series of problems on population dynamics for advanced students.

Age 16 to 18

Challenge Level

An advanced mathematical exploration supporting our series of articles on population dynamics for advanced students.

Age 16 to 18

Challenge Level

STEM students at university often encounter mathematical difficulties. This articles highlights the 8 key problems for biologists.

Age 16 to 18

Challenge Level

How would you massage the data in this Chi-squared test to both accept and reject the hypothesis?

Age 16 to 18

Dip your toe into the fascinating topic of genetics. From Mendel's theories to some cutting edge experimental techniques, this article gives an insight into some of the processes underlying a fundamental biological discipline.

Age 16 to 18

Challenge Level

This problem opens a major sequence of activities on the mathematics of population dynamics for advanced students.

Age 16 to 18

Challenge Level

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

Age 16 to 18

Challenge Level

A brief introduction to PCR and restriction mapping, with relevant calculations...

Age 16 to 18

Challenge Level

Fourth in our series of problems on population dynamics for advanced students.

Age 16 to 18

Challenge Level

How many eggs should a bird lay to maximise the number of chicks that will hatch? An introduction to optimisation.

Age 16 to 18

Challenge Level

First in our series of problems on population dynamics for advanced students.

Age 16 to 18

Challenge Level

Investigate the mathematics behind blood buffers and derive the form of a titration curve.

Age 16 to 18

Challenge Level

Explore the rates of growth of the sorts of simple polynomials often used in mathematical modelling.

Age 16 to 18

Challenge Level

Several graphs of the sort occurring commonly in biology are given. How many processes can you map to each graph?

Age 16 to 18

Challenge Level

An advanced mathematical exploration supporting our series of articles on population dynamics for advanced students.

Age 16 to 18

Challenge Level

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

Age 16 to 18

Challenge Level

How does the half-life of a drug affect the build up of medication in the body over time?

Age 16 to 18

Challenge Level

Use combinatoric probabilities to work out the probability that you are genetically unique!

Age 16 to 18

Challenge Level

Sixth in our series of problems on population dynamics for advanced students.

Age 16 to 18

Challenge Level

How efficiently can various flat shapes be fitted together?

Age 16 to 18

Challenge Level

In this question we push the pH formula to its theoretical limits.

Age 16 to 18

Challenge Level

Third in our series of problems on population dynamics for advanced students.

Age 16 to 18

Challenge Level

Fifth in our series of problems on population dynamics for advanced students.

Age 16 to 18

Challenge Level

Can you work out how to produce the right amount of chemical in a temperature-dependent reaction?

Age 16 to 18

Challenge Level

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

Age 16 to 18

Challenge Level

Which line graph, equations and physical processes go together?