I have to say – I hadn’t even thought about this. As an adult I’m very aware of what light (and indeed soul-destroying fluorescent light) can do to creativity and productivity. I hadn’t thought about CO2. I saw a prototype of the Learnometer by Stephen Heppell at the BETT show last year – worth bearing in mind if you find yourself in an enclosed space trying to teach yawning youngsters…
You can use this image for free without changing it as long you include the attribution below:
The Elephant in the Classroom…
by @bryanMMathers
is licenced under CC-BY-ND