A simple explanatory sheet for this thorny issue.

Some synoptic questions in the form of an interactive web-based crossword. Unzip the file and double click on the index (Works with edge, chrome and firefox, but not safari)

Simple animated cartoon, with narration.

I have reworked this simple video as an mp4 file for anyone nervous of html. It is a bigger download than the html version though, at 2MB.

Double click on the html file. Use browser controls to zoom in or out. Useful for discussion around the whiteboard.

Exam-style questions centered around tryptophan.

2,2,4-trimethylpentane, or iso-octane used to feature heavily in the OCR Salters A level chemistry, because it is an important additive to petrol. It has slipped out of the specification, but the examiner must be sitting on many questions that might be recycled to test understanding. This is a simple information sheet that gives answers to a legacy question that one of my students was completing. It aims to answer difficulties with the question in a graphic way. The sheet runs to three pages and examines isomerism.

Join the ions that cause precipitation. I have included an answer plus an OCR table of solubilities.

Sixth formers love cut & stick. They reinforce understanding and promote discussion. Cut sheet and stick sheet, with spaces to write in bond angles, number of bonding pairs and number of lone pairs.

A simple worksheet. Explanation on page one, standard electrode potentials on page 2, and a few questions on page 3.

the all new shiny improved version, with four titration curves. Just for fun

a wacky video about the motor effect. just for fun

I did a very simple animation of TOFMS with hot cathode ionization. Mainly to amuse myself.

Just because I could. I made a wacky video about this. There is no commentry. For a change, I thought that sixth formers might add their own voice over.

Just terms from the National Curriculum. Solution on 2nd page.

I made one of my clunky videos about this. Just for fun.

My usual series of A level chemistry practice exam questions. Take it or leave it.

I made a simple three slide presentation concerning addition reaction of alkenes compared with the substitution reaction of arenes. This is an important exam question topic and is poorly understood by students. I enclose both keynote and powerpoint versions.

I made one of my cludgy videos to illustrate this important exam topic.

A minimalist presentation which has dot diagrams up to potassium.