Changing a child's alertness by providing sensory input can really help them succeed at tasks requiring concentration - like most educational tasks require. The following list of techniques be used before or during educational tasks to help fulfill a child's sensory needs.
Put Something In Your Mouth
Eat hard candy (sugarless can be used)
Eat crunchy food: pretzels, popcorn, nuts, apples
Eat chewy food: gum, raisins, bagels, chunks of cheese
Eat sour food: pickles, sour candy
Eat sweet food: fruit or candy
Drink from a straw: use an "exercise bottle" to drink liquids such as a milkshake, a slurpie (partially thaw a frozen drink, or other drinks
Try a combination such as trail mix (crunchy, chewy, sweet), Starburst (chewy, sweet, tart), or chips dipped into salsa (crunchy and spicy)
Use green rubber tubing
Take slow deep breaths
Move
Do isometrics - push arms on a wall or push hands together
Walk quickly
Run up and down steps
Do an errand for a teacher
Shake head quickly
Roll neck slowly in a circular motion
Jump up and down - try to touch a door frame
Play sports - basketball, swimming, baseball, frisbee, etc
Do aerobics with a group or at home to music
Dance
"Doodle" on paper - if not too distracting
Use a therapy ball
Touch
Try holding and "fidgeting" with a Koosh ball, paper clips, rubber bands, straw, jewelry, or clay
Rub gently or vigorously on your skin or clothing
Take a cool shower or warm bath
Wash your face with a cold or hot wash cloth
Pet or play with an animal
Hold or lean up against a stuffed animal or large pillows
Look
Put bright lights on in the room if the child is in low speed
Dim the lights if the child is in high speed
Clear off the table you are working on if it distracts you
Watch fish in an aquarium
Read a book or look at a magazine
Listen
Listen to classical type music - even, slow beat
Listen to hard rock type music - loud bass, uneven beat
Use a personal music player (iPod, CD player) if the music bothers someone else
Avoid loud, noisy places if the child is in high speed, or if it bothers them when they are trying to concentrate