MONDAY, May 2 (HealthDay News) -- Exercising while learning might improve kids’ test scores, a new study finds. The researchers looked at students in grades 1 through 6 at an academically low-scoring school in Charleston, S.C., who took part in a program that incorporated physical activity and classroom lessons for 40 minutes a day, five days a week. Before the study, the students had 40 minutes of physical education classes a week. As part of the program, students in grades 1 and 2 learned movement skills while basic academic skills were reinforced. For example, they hopped through ladders while naming colors on each rung.