We have a concept in speech therapy called "Drill and Kill". We need to make sure to provide breaks every 10 minutes for 1-2 minutes. (Use a timer, time can escape). Put the fun in therapy; they can actually practice saying their word or phrase in a relaxed way while taking turns during their break too." under less pressure.
In Speech Therapy, the idea is to get lots and lots of practice, called "mass practice". It helps motor memory, muscle memory set in.
Then we want to practice across days, people, places and situations, called "distributive practice". This helps generalize the new motor skills.
In order for the brain and muscles to engage optimally, we need to take BREAKS. They can be 1-5 minutes. Here is a list of breaks.
Physical outlet; toss and catch games, walking, marching, stretching. balancing, musical chairs or mats, flicking objects,Table top activities; bingo, angry birds, bouncing balls, magnet tosses,
Cognitive outlet; hide and seek objects, flashlight search, categorize - Secret Squares, Quick Cups, Bounce balls, Minute to Win it type games, patterns with color sticks, blocks shapes. matching, puzzles, quick card games, Spot It game,
Creative outlet; stickers, dot art, cut and paste, coloring pictures, playdough mats, leggos, blocks, etc.