Level three introduces children to letter teams − two letters that join to make one sound, such as sh and ch, oo and ee. These are also known as digraphs. And they meet three-letter teams, such as igh and air − also known as trigraphs. --- Alphablocks is a step-by-step reading programme grouped neatly into five colour-coded levels. Each level introduces new letters and letter teams along with new phonics ideas and key skills. Alphablocks uses best-practice systematic synthetic phonics developed with literacy experts and aligned to the EYSF (Early Years Foundation Stage) framework and KS1 curriculum. It is compatible with all major UK reading schemes and has helped millions of young children around the world to learn to read.