## Listing all results (931)

### Interest: Simple and Compound

The first interactive sheet shows a calculator for Simple Interest where the amount invested, the rate of interest and the term can be altered. The next sheet shows sets of five questions on Simple Interest to be answered with the help of calculators. Answers can be revealed and new questions generated.

The...

### Inverse Proportion

This interactive excel file has separate sheets which deal with inverse proportion where the functions are linear, quadratic and square root. Each sheet begins with a statement of the proportional relationship and values so that the constant can be calculated and the equation found. The student then substitutes...

### Averages and Moving Averages

This resource contains two excel files dealing with measures of central tendency, trend and spread for sets of discrete data.

Averages and Range
The first interactive sheet shows a set of nine data items which can be shown sorted into ascending order. The values of mean,...

### Box and Whisker

The first sheet of this excel file shows a box and whisker diagram where the defining points can be altered. The second sheet shows two box and whisker diagrams to allow comparison between distributions. The next sheet shows a box and whisker diagram for students to read off the lowest value, the median and...

### Correlation

The first sheet of this excel file shows a set of data in a scatter plot. The line of best fit can be drawn and a description of the type of correlation can be revealed along with the equation of the trend line. The other sheet shows the value of cars at various ages. The scatter plot shows the data and there are a...

### Cumulative Frequency

The first two sheets of this excel file shows sets of data about the weight of cows in two herds. The cumulative frequencies can be revealed and the quartiles and median are shown derived from the cumulative frequency graph. The next sheet shows the comparison of the two herds as shown by the box and whisker...

### Data Sets: Calculating an Estimate of the Mean

The first sheet of this excel file shows the number of passengers per flight from London to Paris. The raw data is shown in a grouped frequency table and the midpoint of each group can be revealed as well as each stage in the calculation of the estimate of the mean. The next two sheets each show two sets of data...

### History of Computers

This classroom resource for secondary computing lessons outlines the history of development of computers. It covers thousands of years of history, including: *the abacus *log tables *the calculators of Pascal and Leibnitz *Jacquard looms *Babbage's Difference Engine and Lady Ada's role in programming *through...

### Python

This series of three lessons introduces Python programming to students in secondary school.

The lesson objectives include:

*Creating simple code including the input and print scripts

*Using "If statements" to make a decision

*Using the random function in programs

Detailed lesson...

### Data Representation: Bitmap Images

Using a spreadsheet as a grid of 'pixels', this computing activity teachers how 1's and 0's can store image data. The classroom exercises use images with increasing pixel resolution, looking at how this affects the clarity of the image. Moving from black-and-white images, the students then use grids of colour...