Cut out large sized J's out of tag board and write a note home for children to bring in some junk from home. Make sure this junk will fit onto the J and that it is light so it can be glued and will stay put. We use this jumbled junk for our show and tell and it makes a great display too. Another math idea is to graph your favorite jelly bean. Teach addition and subtraction readiness using beans after reading Jack and the Beanstalk.
Children can use the beans for counters.
I hope these ideas will help. I appreciate your time and effort. You are to be commended for this work. With each jump say the letter sound. When each child gets to the end he should walk around to the top for another turn.