An exam-style question about paracetamol. Part of the Practicexamques series.

I made an little interactive widget thingy about the coloured forms of this indicator. It can be seen on my web site. Please note: in order to provide a rich interactive experience, my interactive resources are mini-web sites local to your computer. After unzipping, they comprise a folder containing the main .html file and another folder containing the graphic resources and my coding to make the resource work. Double click on the .html file and the resource will work. If, however , you move or delete any of the files from this hierarchy, the resource will not work. ©D&D production

A simple simulation of the experiment. Unzip the file. Open the folder. Double click on ‘spring stretch version 4.html’ and it opens in your browser. Add the masses by clicking the buttons, and watch the spring stretch. Use a ruler to measure the extension. (The anomaly on the graph at 3N is probably due to a draught of warm air expanding the spring as a door was opened). Enjoy! A preview is availableon my web site. Please note: in order to provide a rich interactive experience, my interactive resources are mini-web sites local to your computer. After unzipping, they comprise a folder containing the main .html file and another folder containing the graphic resources and my coding to make the resource work. Double click on the .html file and the resource will work. If, however , you move or delete any of the files from this hierarchy, the resource will not work. ©D&D production

A very tiny titration. Mainly for (my) amusement.

Whacky narrated video showing how to answer the ‘draw a ray diagram to show the formation of an image by a plane mirror’ type question.

I made a whacky film thingy about this.

I made a wacky cartoon thingy about this mechanism

As specified on the tin.

I made a tiny, simple little interactive animation thingy to illustrate particles in a clunky kind of way. Just the three states of matter. Please note: in order to provide a rich interactive experience, my interactive resources are mini-web sites local to your computer. After unzipping, they comprise a folder containing the main .html file and another folder containing the graphic resources and my coding to make the resource work. Double click on the .html file and the resource will work in your web browser… If, however , you move or delete any of the files from this hierarchy, the resource will not work. stdobbs.com ©D&D production

A simple cut & stick exercise

Cut & stick away.

Label the diagram.

A diagram to be labelled.

A very simple diagram of the apparatus for simple distillation. It may be useful for teaching the principles of how to draw diagrams in chemistry.

I made a simple Venn diagram to put these into context. Students find this area difficult.

I set this to a funky beat, in an attempt to aid memory. Play it over and over again. If it’s too large to download, you could play it directly from this page, pressing the fill screen button. Why not play it at the end of many lessons, getting students to chant the names of the functional groups as they appear? A real process of learning.

A very simple information sheet to cover the update of the definition of the mole, since most textbooks will now be out of date.

A simple explanatory sheet for this thorny issue.

A simple cut and stick exercise to consolidate. In black and white. Students love cut and stick exercises.