I LOVE the Explode the Code series! I did the first 2 with my 3 yr old and he loved it. He wanted to feel part of the group with his older siblings. We did it at his pace and he loved it. He learned so much. I had him reading about 15 sight words before his 4th birthday. We can't wait to do the next book this fall!
My son absolutely loves this. He finished the first book quickly and when we sit down for school he always grabs this book first. I am getting a set to start my 4yo daughter on them now because she is so interested in what he is doing. I have the teacher's guide but I don't use it often at all.
I use this for my 5 y/o and she loves it. We tried Hooked on pre-k last year and she was bored This year for kindergarten we tried get set for the Code and she has learned so much from it! We are buying the next 3 books in this series to finish up this year and begin next.