PUPILS from Chard School took part in the world's biggest lesson last week, along with 40,000 other schools worldwide.

The students, from Years 4, 5 and 6, took part in a science lesson about DNA and learnt about the way it codes the building blocks of living things.

The children built models of the complex structure of DNA in the lesson, and have since used this code to create 20 different amino acids, which in turn make up thousands of proteins.