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What is a population and how can we study a population? Find out about key terms and concepts in this article.

This animation explores the action of indole-3-acetic acid (IAA), the most common form of auxin, and looks at how scientists used experimental evidence to explain the role of auxins in a phototrophic response....

This presentation, using stills from the animation about the action of IAA, is produced without any text making it useful for teaching and revision.

Science relies on using statistical processes to investigate phenomena. This primer explores the processes and explain why they are important.

This series of science experiments from the National STEM Learning Centre and Network are presented as Christmas table demonstrations, using household equipment, but are also suitable for use in the classroom at both primary and secondary level to illustrate a range of scientific concepts.

The first activity in this resource asks students to consider x = 5 and answer the question ‘what value is y’? An initial discussion builds up understanding of graphical representations of linear equations.

This lesson develops solving pairs of linear equations by considering their graphical representations...

Bowland Maths includes over thirty tasks designed to help assess students’ achievements and progression against key processes. To help with this assessment, each task contains sample work, and a 'progression table' showing how students’ work on the task can provide evidence of their progress with the four key...

Paul Black discusses the values of...

This activity helps learners begin to consider some issues involved in setting up their own business by making an initial, outline, mathematical model of the costs involved in setting up a business. Learners are required to work in small groups to create a poster showing the factors they would take into account,...

This issue of Catalyst contains the following articles:

Dust to dust?

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This collection contains ten resources each containing an engaging activity for mathematics students. Mathematical topics covered include fractions, algebra, area and perimeter, problem solving, factorising quadratics, times tables and brackets.

In this Bowland assessment task, students are shown a picture of one of the clock faces from the Royal Liver building that was once used as a table. Students are asked to estimate how many people could sit around this table. The diameter of the clock is given in feet so that the circumference can be calculated....

Basketball Earth
This resource uses a basketball as the Earth to set up a scale model to the distance to the Moon, satellites and distances such as the thickness of the...

This issue of Catalyst includes the following articles:

Phytoplasmas - Friend or Foe?

Phytoplasmas are micro-organisms that affect crop plants, modifying their growth. Botanists are seeking to counter their effects.

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A person is shown on a swing. They swing back and forth at a constant rate and reach. After several swings, the person jumps off the swing and comes to rest. The challenge is to graph the height of their waist against time. The resulting graph is parabolic and periodic with a constant section at the end.

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