I have my oldest do 5 different activities with her words a week. Granted mine is 7 and I know yours is older. We did putting them in alphabetic order, reverse alphabetic order, word scramble (no word list), word search (no word list), and then write each one ten times each.
I tried having her write silly sentences with them, but I got the same sentece repeated with a different spelling word in each sentence. I had to change things up and make them so that she could do them at her level. I also tried having her write a rhyming word....that wasn't a spellling word either. That one was an epic fail. This poor child NEVER learned rhying between pre-k and K (both public school). I had to spend the rest of the year working on rhyming with her on top of her regular work. She is better at it, but not great yet.
My sons pick their own words and chose how to learn them any way they wish. I love looking up creative ways to learn them. We have used legos to spell words, stencils, 3D spelling house that they built. Try having him type his spelling words if he enjoys typing.
How old? My kids loved to paint their spelling list each week with water colors, stamp them with alphabet stampers, play hangman on the white board, rainbow write the words with markers, spell them out with magnetic letters on a cookie sheet, write them on the bathroom mirror after bath time.....