Remove distractions – sounds, screens, etc. This can also mean providing them a designated area.
Move the body – Run them around – get energy out – moving stimulates the brain. Running club in the mornings. My children’s school has rocking chairs for some kids
Make a list of tasks – Write everything down.
Keep tasks small – Tackle one thing at a time. If you are teaching them to clean their room, start with just cleaning their bed, or focus on a toy bin. Too many tasks can be overwhelming
Make it a routine – Kids welcome routine. Have them brush their teeth after pajamas every day. don’t switch the routine.
Take breaks – Every child is different but watch your child to see when they get squirmy. For adults, I learned that 25 minutes is optimal for flow and focus. It’s called the Pomodoro Technique
Healthy diet – sugar, caffeine may work in short bursts but it will cause crashing. Then when you don’t have it, you are out of luck. Try to provide them a healthy balanced diet. They should be eating all meals.
Understand how they best learn – are they visual, auditory, or kin aesthetic
Breathing techniques or meditation – allows them to practice focusing on their breath or sitting still. Guided meditation can be great and fun for kids. It builds that muscle for when they need it.