
This example uses a common module availble from www.rapidonline.com (Code 37-0310), and www.mutr.co.uk (Code TG1 010), for about £1.35. Partner with a simple battery box with built in switch (Sold by both rapid and mutr) and a couple of wheels and you have an inexpensive 'platform' for creating a strong capable vehicle.

And if you are worrying about costs, you can normally re-use all parts with care, or charge the pupils as if they're idea is good, and they are proud of it, virtually all pupils will bring in some money towards the cost!