During this stage, Maria gain a better understanding of mental operations where she develops an ability to think logically especially in numbers and make rational judgement about observable or concrete events but she have to make effort on abstract or hypothetical concepts. So, the best method to teach this child is to let her have the opportunity to ask questions and explains things back to you to allow her manipulate mental information.
Swimming and running, as swimming will stretch and work most all of the muscles of the body and running as it will be the more cardiovascular version of running.