This is a modelling activity where students use sampling techniques to determine the distribution and abundance of organisms in a simulated habitat. Students will simulate the mark–release–recapture technique (Lincoln Index) for estimating population sizes of mobile species. 

Curriculum links include: ...

Act 1

Two ditch diggers start digging towards each other...

This challenge enables pupils to model and test filters as a way of making dirty water cleaner. It can also be used to explore ways of making water safe to drink.  Curriculum links include separation techniques and pure substances.

The challenge can provide a focus for National Science and Engineering Week,...

This resource from Farming & Countryside Education (FACE) allows students to investigate how different farmers have addressed the challenge of sustainability, and the solutions they have devised to remain in business despite the serious long-term problems faced by the sector. The farm profiles help the students...

This activity provides a mathematical problem that is solved in a simple way. It relates to the way algorithms are used in search engines and links to problem solving in maths. The context is that of Santa trying to find his socks in one of 1024 boxes, which a clever elf solves for him. Children can then go on to...

This resource, from the Centre for Innovation in Mathematics Teaching, uses diagrams to illustrate division by a fraction and, to clarify the common misconception identified with this task, prompts students to rethink the statement, divide three by one quarter, as the number of quarters that fit into three....

This Catalyst article explores how many mammal species' bodies are adapted to cope with the great pressures involved as they dive to great depths.

This article is from Catalyst: Secondary Science Review 2011, Volume 22, Issue 2.

Catalyst...

This task is designed to assess how well students understand working with recurring decimals in practical situations.

The task gives students the information that when you calculate 100 ÷ 6 using a calculator, the result is 16. 666666667

They use this information to arrive at answers to a series of...

The first interactive sheet shows fractions where the numerator is 1. The fraction is converted into a decimal by long division and illustrated as the fraction of a circle. The denominator can be altered to be between 1 and 9. The next two sheets also show long division...

This SMILE resource contains two packs of games, investigations, worksheets and practical activities supporting the teaching and learning of division, from simple division problems to converting between fractions and decimals.

Division pack one contains thirteen work cards with activities...

A Catalyst article about people who believe that their health is affected by mobile phone radiation. The World Health Organisation has labelled this condition Idiopathic Environmental Intolerance with attribution to Electromagnetic Fields (IEI-EMF). Idiopathic describes a disease with no known cause. The article...