This excel file allows students to explore the successive terms of a Geometric Series. The first term and the common ratio can be altered and the successive terms and sum of the series shown on bar charts. The formula for the sum of a Geometric Series is derived and the...

This series of interactive excel sheets help investigate geometric series and progressions.

The first sheet generates the terms of a geometric progression, for |r| ≥ 1, and the value of a further term. A new sequence...

This excel program contains a series of interactive spread sheets designed to explore the concept of a gradient of a curve.

The first activity illustrates that the gradient of a function, at a point P, is the gradient...

This excel program contains a series of interactive spreadsheets designed to explore the concept of a gradient of a curve.

The first activity illustrates that the gradient of a function, at a point P, is the gradient...

This resource is an interactive excel program to enable students to investigate the solution of polynomial equations up to cubics using a graphical method.

The program shows the graphs of cubic equations and the...

This resource is an interactive excel program to enable students to investigate exponential growth and decay. The topics of the interactive sheets are depreciation, exponential growth of bacteria and half life and radioactive decay.

From the Wellcome Trust Sanger Institute, this resource introduces the Human Genome Project (HGP).

A short animation gives:

* an introduction to DNA and genomes;

* an overview of which countries were involved in the international Human Genome Project;

* a description of the processes,...

This resource is based on the Inventive podcast. The podcast mixes engineering fact with fiction. Each podcast features an interview with an engineer. In this activity, electronics design engineer Shrouk El-Attar is the inspiration for Tania Hershman to write 'Human Being as Circuit board, Human Being as Dictionary...

This resource is based around the chemical composition of the human body and the origin of elements in the universe. Students can input a mass in the spreadsheet to see what proportion of their mass is from elements created in the Big Bang, in stars and in supernovae. Graphs are also shown for the relative...

This resource is based on the Inventive podcast. The podcast mixes engineering fact with fiction. Each podcast features an interview with an engineer. In this activity, electrical engineer Jack Howarth is the inspiration for poet Katrina Porteous to write 'Ingenious'.

Short audio clips about the engineer...

This resource was produced by the Association of the British Pharmaceutical Industry (ABPI) as part of their 'At Work With Science' materials. In this interactive resource, students are introduced to the legal aspects of the Health and Safety regulations; the concept of risk assessments and how to develop them....

This is a classroom-based activity from the Wellcome Trust Sanger Institute that allows students to explore the features of two bacterial pathogen genomes. The aim of the activity is to highlight the role of different genetic components in two strains of Staphylococcus aureus and to identify how these have led to...

This excel file looks at using the sine curve to model the water depth in a tidal river.

The first interactive sheet shows how the Earth’s orbit around the Sun can be modelled by the sine curve. One or two cycles can...

This interactive program deals with the modulus function applied to linear, quadratic, reciprocal and sine functions. The graph of each function is shown as well as the unreflected sections of the graphs.

The first...

This resource contains two excel programs with interactive spreadsheets dealing with linear inequalities in one or two variables.

Trial and...