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Decide if a described investigation is a fair test, and explain the decision. Assessment focus: identifying fair testing.

Task: Make careful observations of a picture to decide what you can see and what you might know but can't see.

Task: Match cards to show the relationship of birds' beaks and feet to the food they eat. Assessment focus: adaptations.

Students prepare and give a 'Thank you' speech. Points to be covered by students and a scoring guide for teachers are included.

Students complete qualitative scales to describe feelings about homework, lunch, and assembly behaviour.

Students calculate the percentage by which clothing prices have been reduced.

Students calculate the surface area and volume of a pyramid.

Students calculate perimeter, area and the surfaced area of a box of chocolate.

Students calculate the height of two cylinders given the radius, and identify a correct general statement about the relationship between radius and height for a given volume.

Students use trigonometry to find missing distances in three everyday problems.

This task requires students to demonstrate their understanding of locus by drawing in the paths that people follow in three given situations. An understanding of scale is also required to complete this task successfully.

Students expand and simplify algebraic expressions based on measurements of a path around a lawn.

Students identify parts of algebraic equations and use the equations to calculate temperatures in the Antarctic at different times of the day.

Using multi-link cubes students construct and explore a growing sequence of step models, then they apply this information to continue the pattern without the cubes.

Using multi-link cubes students investigate the number of faces visible in a sequence of step models, then they use this information to continue and record the pattern in a table.

Students use place value rods in this practical task to build up square patterns. Students then predict the number needed for the next pattern and explain their rule.

Students use rules to work out the number of shapes or matches in spatial patterns, and complete an algebraic rule from a word rule.

Students interpret a line graph about how students felt during their swimming sports.

Students locate co-ordinates on a grid, then plot a further co-ordinate.

Students sketch a relationship graph from information about how hungry a person was over the course of a day.

Students complete a table and a rule for a linear equation for a foreign currency exchange. The values are then plotted and interpreted.

Students complete number patterns and express the rules in words.

Students identify the co-ordinates of points required to make the shapes of letters of the alphabet (L, T, and K) on a grid.

Task: Plan a fair test to see which of two solar showers of different colours heats up more. Assessment focus: controlling variables.

Task: explain the effect of temperature on metal and wood. Assessment focus: the effect of heat on different materials.