Infrared led

An invisible infrared led shines brightly when we take a photo of it for the Planks constant apparatus 

Biology Virus

 Its certainly easier teaching about viruses these days. The students know about them and how to stop them. They still struggle with how they get into cells and what they do there however

The Nylon Rope trick

 The nylon rope trick is one of my favourite experiments and also using @Snatoms to show the students what is going on at that oil water interface

Pasco and Lego

 Two of my favourites, Lego and @Pascoscientific and working together. Creating different types of carts for use with a motion sensor. Trying different wheels and wheel arrangements for different surfaces. Which is the most effective for different terrains

Probability

 Maths is having fun with the dice tower and 120 dice trying to see if more dice gives the 1/6 ratios, or whether 1200 dice was better. Conclusion we needed to go much bigger - very much bigger

Locktronics is an electricity winner

 So easy from diagram on the board to a completed and working circuit using Locktronics from @MatrixTSL The students can seem to get through twice as many experiments in the time and more importantly with greater understanding

Ready to do a titration

 I have started using automatic dispensing pipettes with the students when setting up titrations. Why use the pipettes with a bulb when the students aren't good with them and use these which are more accurate and faster.