On the Guardian Teacher Network this week, you can find a special design and technology lesson, prefaced by James Dyson and created by Steven Parkinson, the James Dyson Foundation's 2011 award-winning teacher. Parkinson, from Archbishop Holgate's school in York, has created a presentation that inspires KS3 students to think critically about product design. They will then be tasked with creating their own product – anything from protective clothing for an army officer serving in Afghanistan to a power tool for a family living in the jungle. To download the lesson go to: www.teachers.theguardian.com/resources.aspx?q=Dyson&INTCMP=NECEDUIMG4537 or http://bit.ly/ieV6uz.

• The Guardian Teacher Network offers free access to more than 70,000 pages of lesson plans and interactive materials. This content is being added to every day by teachers and specialists. Nearly 32,000 teachers have already signed up. To see (and share) for yourself, go to teachers.theguardian.com. There are also nearly 2,000 jobs on the site and schools can advertise free http://schools jobs.theguardian.com.