A popular activity as a warm-up or for early finishers is to find all the words using the letters of a long word. The letters can be mixed up. I would not recommend this activity unless it’s something to fill in time at the end of the term or year.
In Hooking Students Into Learning … in all curriculum areas, there is an activity called, Little Words in Big Words (page 195 - click on the page image to view a full-size preview).
Students find all the smaller words in a longer word without changing the order of the letters.
This activity helps considerably with spelling because students do what good spellers do naturally; that is focus on the order of letters in a word and pay attention to all the letters in a word. Choose a long, subject-specific word for this activity.
Here’s what this looks like with the word, photosynthesis.
NB: You will need to decide if you are prepared to accept abbreviations e.g. photo
Have a go yourself with the word, justification.
