All of the areas you have mentioned are classic to ADHD. Motivation for little ones can be achieved through a star chart with a reward at the end of the week if he gets x number of stars. A single chart can be created divided into the days of the week as well as separate columns for 'not arguing', 'working quietly', 'working neatly' etc. Explain to him how he can gain stars and what his reward will be at the end of each week: getting tuck-shop, small toy, a movie etc. Be sure to clear any and all rewards with his parents.
To facilitate his learning of not shouting out and rather putting up his hand: when the teacher is asking a question remind him to put up his hand while touching his elbow, eventually you will be able to lose the verbal prompt and only touch his elbow as a reminder. Initially, you may need to repeat the question for him as he will be listening to your reminder rather the teacher's question.
There are facilitator courses you can go on; please contact me via Email should you be interested.
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