I bought these as an aid to teach my daughter to read when she was still at Nursery. She first started to read the words letter by letter and during the summer holiday's she started to put the letters together and started to recognise words by just looking at them (didn't need to use the side with the letter land characters in them as she was quite good at recognising the letters, although they came in handy when she got letters like 'b' and 'd' mixed up). My daugher, started Reception at 4 years and 2 months, and two months into reception, while the rest of her school friends are just learning the letter sounds, she is already reading. Her teachers are very impressed as they gave her some 10+ keywords to take home and learn and she took them back to school the next day as she already knew them. I sometimes use these cards in the morning and she reads them while she has breakfast. She doesn't find it a chore at all. It stimulates her to know she can work out or read through a whole new word. Highly Recommended!