Tutors and learners can play a drag-and-drop spelling game by using a Google Slide with movable letters.
See a locked version
Make an editable copy. You must have a Gmail account. Locate the copy in your Google Drive. Change the sharing setting at the upper right to "anyone with the link can edit". Copy and share the new link with your learner, so the letters can be moved around by all.
Play the game in the editing mode, not the slideshow view.