If you want accommodations for your child, you will want to get either an IEP or a section 504 plan, depending on whether or not your child requires services that would be considered special education services.
Wrightslaw has great information on the process. You should request an evaluation from the school, and provide them with the report as a part of the process of making the determination of what accommodations and services your child needs and will qualify for. There are no set accommodation or services for a given disability, only for the actual needs of the individual disabled person.
You can certainly talk to the teacher about your child's needs and see what you can work out on an informal basis to help your child while you are getting the formal (and enforceable) plan in place.
Here are some ideas for strategies that are commonly used with students with ADD/ADHD.
