Depending on the age & topic you were teaching you could try http://sparklebox.co.uk http://sparklebox.co.uk or Teachers Pet - http://tpet.co.uk http://tpet.co.

Depending on the age & topic you were teaching you could try http://sparklebox.co.uk http://sparklebox.co.uk or Teachers Pet - http://tpet.co.uk http://tpet.co.uk - these cover a variety of lessons & themes and are suitable for up to age 10.