This summer, it’s important to get the kids working on learning activities. If you are looking for a good program to use with your kids this summer so they don’t forget what they have learned in school, I highly recommend checking out the Summer Bridge Activities Books. I’ve used them on and off for a few years and they are great for “bridging” over from one grade to the next. The kids find them fun as well instead of just boring book work. Amazon has most of them priced around $8.98-$10, and shipping is free with Amazon Prime . Looks like they have everything available from going in to Kindergarten to 8th grade.
Another great option is the Summer Brain Quest. I haven’t personally used these but I used to love Brain Quest as a kid. They are priced around $6-$11 depending on grade.