Vela

 Found my Vela when searching through the loft. 40 years ago, it was a great tool in the science lab, grabbing data from some experiments and squirting it into a BBC microcomputer. 

Orbitals

GCSE Chemistry: Trying to work out how those electrons are arranged in the orbitals and if any pattern can be seen. Working from a periodic table, it takes a while for a pattern to be seen, and the word spreads around.

online determination of acceleration due to gravity

 This is an online lesson that shows acceleration due to gravity using the @pascoscientific light gate and a picket fence. It works very accurately and is easy to demonstrate so that the students can see and understand what is happening.

Exam Practice

 Running out of exam questions. Some students have been improving their skills by doing loads of exam questions, but what happens when you run out as many do. Look at other exam boards - the format isn't the same but Science and Maths doesn't change.

Diffraction grating prism

 Using a Diffraction grating as a prism and measuring the angles to show how we can look and measure starlight

Current speed on the River Thames

 Measuring the current speed on the River Thames. It has dropped considerably in the past couple of weeks and was doing a steady 1.1 mph

TRS-80 Model 100

 The TRS-80 Model 100 coming out for its annual outing, showing to the students a working laptop computer from 40 years ago.