Wipe-Clean Books
Wipe-Clean books work well for such a wide age range - not just little kids. For the younger age group they build first pen control skills providing practice with fine motor control as well as teaching numbers, letters, shapes etc. They don't have to be done perfectly, because you can always erase with a tissue and have another go!
For older children they're a great format for skills which need to be practiced over and over, such as Times Tables.
For older children they're a great format for skills which need to be practiced over and over, such as Times Tables.