Chooser Charts were a key tool developed by the Nuffield D&T project that David led. Nuffield cannot claim that it was their idea. David Layton pointed out that Christopher Polhem had this idea in Sweden in the 17th Century. He developed a Mechanical Alphabet which was used in teaching at the Laboratorium mechanicum – Sweden´s first school of technology – and later also at the Institute of Technology, the predecessor of the Royal Institute of Technology of Sweden.
The aim of the Nuffield Chooser Charts was to provide young people studying design & technology with easy to use sources of information to help them make design decisions across all the focus areas. The Nuffield materials are now collected together on this website under Resources and contain a wide range of chooser charts for both KS3 and KS4 – in the latter case grouped by material area [electronics products, food technology, graphics, product design, and textiles], reflecting the way GCSE D&T was organised when they were produced. These materials can be freely used and adapted for classroom use but permission needs to be sought for any other purposes.
And we’ve just noticed that MIT’s D-Lab has made available, as high-resolution PDFs, three ‘Learn-IT Boards’ that are, in essence, Chooser Charts of a high graphic quality; one each on Fasteners, Adhesives and Material Selection.
Measuring 2 feet tall by 3 feet wide, Learn-It boards are designed to be hung on a workshop wall. There, the Learn-Its act as self-serve references for workshop users making prototyping decisions.
Note that, though free, these materials are provided under the Attribution-Non-Commercial 3.0 Creative Commons License, which essentially means that if you use them you need to attribute MIT, include the same licence and not use them for commercial purposes.
We think it’s especially interesting that these are designed to be hung on the workshop wall to enable good design decisions to be made on the hoof!
The Learn-Its are more detailed than the Chooser Charts. They are self-guiding resources that provide an integrated introduction to basic mechanical design elements; they bridge the gap between superficial how-tos and super-detailed technical guides. They give people the right vocabulary to ask targeted questions in the workshop and online, while outlining detailed tips and explanations of physical phenomena driving how different mechanisms, tools, materials, and fasteners work. People are provided with enough information to critically select the right material, adhesive, or tool for their project.
In comparison, the Chooser Charts are really designed to support design decision conversations between pupils and teachers, as opposed to providing all the information necessary to make and enact a design decision. So we see the pupils in schools having their own copies of chooser charts which they can annotate as they discuss possibilities with their teachers. We believe this would be very helpful in evidencing the design decisions the pupils make in the new GCSE contextual challenge. You might consider blowing up the Nuffield Chooser charts to A3 size and laminating them so that the teacher and pupil could annotate together using a white board marker. Of course the pupil would need to photograph the result for evidence of designerly thinking.