In order to make children stay more focused and have more fun we decided to use an animated character.
For exercises demonstration we zoom in and show a monster closely.
Speech therapist controls the monster. It's happy when a child is doing great and it's sad when a child needs to try again.
Also speech therapists have a library full of lessons with sounds, pictures, exercises. They are free to add their own files there.
During the class they can switch between the content and it's shown and played at the child's side.