I use this from a girls’ school in Cleveland that my friend’s kids attend- not sure why the link isn’t directly from the school but it’s great for all grade levels:
http://www.slavchevmusic.com/summer-reading.html#
Also recommend working on the basics of school so your child feels confident in other areas if they’re struggling with certain academic areas. Don’t discount social skills and life skills as a way to build confidence and success in school and try this list:
-can tie a shoe
-can read a map and understands cardinal directions
-understands the calendar and dates
-has clear, legible handwriting and can express thoughts in writing (this came before reading for my child)
-can organize a folder, fill a backpack, zip it tidily, and hang it up
-can eat a packed lunch or hot meal without help
-can tell time on an analog clock and can follow and anticipate a schedule
-can do the monkey bars (this is arbitrary but happened to be a certain path to admiration and social success in the fall at my kid’s school)
Kids with the above skills will receive more patient attention and academic instruction from teachers than kids who are trailing shoelaces, whining for backpack help, and writing messily. It isn’t fair but it’s true. It will also set them up for later success in elementary school and build a strong base of executive functioning skills.