Solving Quadratics

 A-level Maths: Many students need to remember that all the papers are calculator papers, and they can use the calculators to solve the quadratic and use the graphing functions to help them see the shapes of graphs.

Centripetal force

 Demonstrating that a spinning ball in a glass can be lifted into the air.

Which natural antiseptic works the best

A good fun practical all made with natural ingredients to investigate which is the most effective antiseptic plant extract to kill bacteria. As well as some of the normal heroes students tried out some of their own ideas

 

Network Topology

 Learning all about network topology is not about looking at a diagram, it is about building and using a network and wiring from scratch and learning about traceroute.

biology field trip writeup

Trying to help a student with a biology field trip write-up. It's difficult when they don't know the trip's aim; they only have half of the data, and the other groups did the recordings differently, and they didn't take any photos or GPS tag anything.

 

Universal indicator

 An excellent year 7 practical introducing indicators as chemicals that change colour according to the pH. Except this was for year 11 students who didn't know about Universal indicator because they hadn't done any experiments until the required practicals in year 10.

Wind up Torch

 In moving a few things in my loft I found the wind-up torch, which will be used in the Physics lessons for energy changes - chemical to kinetic to electrical. These torches are much better than the Shalke variety in the books.