We've decided to opt out of Extended School Year services with our local district because Frog's para and teacher will not be part of the program. This left me contemplating going back to home school for the summer to keep Frog moving forward. With Rapid Prompting, we have found that he can access age appropriate curriculum when it is modified to work with the system.
Another home school mom just sent me a link to Unique Leaning System's Free Summer Curriculum offer. The materials are standards based and differentiated into three tiers to suit different types of learners. It looks promising and like something that could be used during the school year too. The price is right - I'll let you know what we think of the materials when we use them.