In this resource from the DfE Standards Unit, students analyse simple number 'tricks', and explain how they work, using algebra. They then try to create their own variants of the trick, making it more impressive. Students will: develop an understanding of linear expressions and equations; make simple conjectures...

This interactive excel file allows students to investigate two-point perspective drawings of some simple shapes. The concept is put into context by a picture of the interior of a French church.

The shapes in the...

In this activity, students assume the roles of various characters placed in difficult situations e.g. investigating a malfunctioning lift system, attempting to avoid activation a floor-based alarm, escaping from an underground railway network. Students will need to use thinking skills, reasoning skills and problem...

This interactive excel file has a series of sheets showing nine different regular polygons. Each polygon can be rotated and also shown with or without the circumscribing circle. They can be shown with or without the radii.

This excel file deals with the four operations on positive and negative numbers giving practice at a variety of calculations.

The first interactive sheet shows a table with -5 to 5 both along the top and down the side...

This interactive excel file shows how the volume of a prism relates to the area of cross section and the length. Various different shapes of cross section are used including pentagons, hexagons, circles and semicircles. In each interactive sheet the cross section can be...

This resource contains four interactive excel files dealing with:

Probability Line and Simple Examples
This excel file...

This excel program illustrates the effect of introducing bias when throwing coins.

The first interactive excel sheet simulates the outcome of throwing a coin ten times. The probability of each outcome is plotted and...

This resource contains two excel files which encourage exploration of the background to Pythagoras' Theorem and give practice in its application. Each file contains the same nine sheets of questions which may be suitable for use in the classroom.

This resource contains four excel programs with interactive spreadsheets dealing with topics relating to quadratic expressions, their graphs and solving quadratic equations.

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The different types of quadrilateral are illustrated in the first seven interactive sheets of this excel file. Examples of each type of quadrilateral are shown and then further examples illustrated on a coordinate grid. The next sheet is more like a quiz as...

This activity provides the opportunity for students to appreciate how mathematics plays a part in everyday life. The town council has allocated £100,000 to spend on reducing the number of deaths and serious injuries due to road accidents. Students are expected to adopt the role of planners who work in small teams...

In this resource from the DfE Standards Unit, students interpret 2D representations of 3D shapes, analyse 3D shapes using plans, elevations, and isometric drawings and develop their reasoning ability in spatial contexts. Many students may have met these ideas before, but they may still experience difficulties in...

This resource contains two interactive excel files which deal with rounding of discrete and continuous variables and pose problems involving practical examples of calculations using rounded values.

Rounded Numbers: Bounds The first interactive sheet shows two numbers rounded to the nearest...

The first five interactive sheets deal with various types of diagram involving similar triangles. Each sheet shows a clear diagram and a table of values. Lengths of line segments can be revealed to allow the student to calculate the scale factor of enlargement and the...