Proving the theorems

 Sometimes knowing the theorem is not enough. You have to be able to prove it and justify the facts to be true.

Rotaflow or not

Carrying out a titration, I gave the students the choice of different types of burettes. I showed them how they worked and then they all chose the straight ones rather than the Rotaflow design.

Failed experiment

Investigating catalysts. The student was so slow in lighting the spill the experiment was over before he was ready - we had to do it again after this.

Ring Launcher

Demonstrating the ring launcher and how it works

Investigaing a CRT.

 I grew up with CRT's, but for most of the students they have not seen one, so I took off the case from the Oscilloscope to show all the parts and how it works.

Ionic Shapes

 We used a Brother Scan'n'Cut machine to cut out 1+, 2+ and 3+  ions along with the 2- and 1- counterparts. The students seem to find it easier to create and write down chemical formulae.

Breathing Model

 I had some problems breathing then I realised there was a hole in my diaphragm, so after a few minutes the rubber was replaced and I could breath again. Fortunately this was the model not me.