Hi M.,
As a classroom teacher, I have seen kids with ADHD and ADD. It is a real issue. There are kids who cannot function without medication and there are a lot of kids on medication who shouldn't be. As his mother, you will be one of the only ones who can make that decision as to what is best for your son. You know him the best.
I want to also let you know that there is no way of officially diagnosing ADHD/ADD. There is no testing of academics or medical. It is a diagnosis that is made by a doctor who has gathered information from the main people in your child's life. The doctor will give his teachers, his parents, and any care providers a list of questions that are answered by circling numbers as to the degree of severity (0-5). Then based on the parents request and the 'surveys' a diagnosis is made and medication may be prescribed.
There are lots of parents who have children who suffer from this and some have found ways to help/cope with their children. I suggest that you continue to look for this type of information on the internet. There is research that shows what your child eats, how much he sleeps, and how much he exercises influences these issues that your son portrays.
I also suggest that you request that the teacher ask his/her colleagues for advice on helping your son and provide you with a list of things to try since they know him in the school setting. There are support teams made of teachers at every school to do this. This is the team that reviews kids with possible learning disabilities and makes suggestions for interventions if necessary before a child is tested.
I would also really study your child's learning style and see if you can tweak his assignments and environment to better suit him. Does he learn auditorally? Does he learn hands on? Does he learn from memorization? If he learns in any of these ways, how can you change what he is doing in the direction he learns best? (You can also look online to find quick assessments to help guide you.)
If you decide to get an evaluation and he is diagnosed with ADD/ADHD, then you need to request that your child be put on a 504 Plan. It is a simple procedure that requires the school to put all of the accomodations and modifications in writing to best ensure your child's rights for learning. It costs you nothing and the school has 30 days to either deny or provide the plan (they can't with a written diagnosis from your child's doctor). This plan is common sense on paper. If your child needs to sit in a less distractive place in the room, then it is documented and is in 'stone'. He may need extra time organizing his books and writing assignments in his planner, the Plan allows this if it is writtien in it. The accomodations and modifications are those that DO NOT require extra assistance from a teacher (that would technically cost money and that is not what a 504 Plan is for...it is to protect your child's right to an education). Only under an IEP (Individual Education Plan) can those types of services be given...they are federally funded and only for Special Education students.
If you request a 504 Plan, be prepared with a list of ideas you would like to add. It should be a collaboration with the school and you. The 504 Plan will follow him through school and can be updated yearly or whenever you (the parent) requests it. It usually isn't necessary in elementary because the teachers are usually willing to do whatever it takes, but it is good to have when your child doesn't get one of those teachers.
I hope you get lots of help in your journey. Every person learns differently and it is sometimes very difficult to figure out the best course of action. You are on your way of helping your child reach his potential.
Best wishes to you and your family.