Listing all results (28)

Seeing Temperatures

This activity allows students to investigate how images are produced from data streams by using first a spreadsheet and then an image-processing program. They then go on to see how the usefulness of such a monochromatic image may be enhanced by using lookup tables and calibration. The materials used focus on the...

Building Images

In this activity, students create colour images from satellite data. This allows them to study how different surfaces reflect different wavelengths of light, how coloured images are created using an RGB model, and how band combinations can be chosen to examine a particular landscape effectively.

Rabbits

In this Cre8ate maths activity students learn that a simulation is a model of a real situation. Data for the birth rate of rabbits is provided and is used by students to develop their own model to simulate the breeding of rabbits in a field and consider the likely damage to the farmer’s crop. Initially this is done...

Pixel Perfection

This investigation from Cre8ate maths involves students in finding the best size screen for a television. If you have a large flat screen and view a standard analogue or digital picture the individual pixels are visible if you are sitting too close to the screen. Working in small groups of 3 or 4, students measure...

Alien Invasion

Alien Invasion is a set of four interactive lessons about a full-scale alien attack that coincides with a class visit to Manford City. To set the scene and support the lessons, live television news bulletins, radio broadcasts and telephone messages help to develop the story line. The invasion leads to a series of...

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Amazon percent discount

A screen grab is shown of a product page from the internet. The list price is given, together with the amount saved. The new price and the percentage discount are blanked out. The task is to find the discounted price and the percentage discount.

The screen grab is shown again, but this time with the new...

Partial products

There are three pictures given of multipacks of food. In each case, some items have been removed from the multipack, and the shopper wishes to purchase the quantities left. The prices are given for a full multipack for each product. What is the total grocery bill?

The Longitude Problem

This film, from Twig World, looks at the relationship between time and place. In an age before satellite navigation and GPS, one man found an ingenious solution to the problem of determining a ship's location at sea. The key points made in the film are: •Lines of latitude circle the Earth horizontally; lines of...

Calculations with hundreds and thousands

This resource, from the Centre for Innovation in Mathematics Teaching, builds on students' previous knowledge of multiplying by powers of 10 to demonstrate how calculations such as 2000 x 300 can be performed accurately. Follow-up exercises provide practice in the skills learned.