Help your wiggleworms enjoy spelling while moving at the same time.  Get big pieces of paper 26 8by 10 or 13 and cut them in half.  Write the letters of the Alphabet on each of them and either tape them to the floor or a big piece of cardboard or posterboard whatever works for you.  Then call out words and have your child step on each letter in order as they spell example cat they would step on /c/ then /a/ then /t/.  My kids love this one.  In the summer you could probably write with chalk on the drive way and do it.

If your kids aren’t big on writing then maybe you could let them take their spelling test this way.