This study arm includes the schools where the School Team (school teachers, coordinator) receives the physical activity intervention. The intervention consists of four parts:

1. School Engagement and Assessment
2. Training
3. Physical Activity Equipment and Resources
4. Ongoing Assessment and Technical Assistance

The control arm includes the schools where the School Team does not receive any intervention but all the necessary data will be collected.

The physical activity intervention consists of:

1. School Engagement and Assessment - Based on the customized assessment, training is provided for school staff to develop the capacity to increase PA. A school PA team is established.
2. Training - School teams are provided with ongoing in-person and virtual training to learn strategies for increasing PA before and during the school day. A training summit meeting will occur each summer, starting with the summer prior to the intervention. Teams will create a weekly calendar of activities to increase PA time to a minimum of 40 mts/day.
3. PA Equipment and Resources - After training, schools are provided with PA equipment, resources and teaching aids to facilitate the integration of PA into the school day.
4. Ongoing Assessment and Technical Assistance - Student accelerometer data will allow for monitoring of PA levels, so that additional technical assistance for classroom teachers can be provided if needed

The Georgia Milestones comprehensive summative assessment is administered annually in the spring for students in grades 3 to 8. The test was first used in Spring 2015 and is the best objective universal indicator of students' academic performance in Georgia. Georgia Milestones measures how well students have learned the knowledge and skills outlined in the state-adopted content standards in English language arts, mathematics, science, and social studies. The tests are scored with four achievement levels. Level 1: Beginning Learner, Level 2: Developing Learner, Level 3: Proficient Learner, and Level 4: Distinguished Learner. For grade 3 the scores for the different levels of math are 290-474, 475-524, 525-579, and 580-705; for grade 4, 270-474, 475-524, 525-584, and 580-715; for grade 5, 265-474, 475-524, 525-579, and 580-725, respectively. The scores from the 3rd grade (pre-intervention) are compared to scores at the end of 4th and 5th grades.

The Georgia Milestones comprehensive summative assessment is administered annually in the spring for students in grades 3 to 8. The test was first used in Spring 2015 and is the best objective universal indicator of students' academic performance in Georgia. Georgia Milestones measures how well students have learned the knowledge and skills outlined in the state-adopted content standards in English language arts, mathematics, science, and social studies.The tests are scored with 4 achievement levels. Level 1: Beginning Learner, Level 2: Developing Learner, Level 3: Proficient Learner, and Level 4: Distinguished Learner. For grade 3 the scores for the different levels for reading are 180-474, 475-524, 525-580, and 581-830; for grade 4, 210-474, 475-524, 525-573, and 574-775; for grade 5, 210-474, 475-524, 525-586, and 587-760, respectively. The scores from the 3rd grade assessment (pre-intervention) are compared to scores at the end of 4th and 5th grades.

Lexile Level is a popular method used by schools to measure a student reader's ability. It serves two unique functions: it is a measure of how difficult a text is, and a measurement of a student's reading ability level. A student receives his or her Lexile measure by taking a school-administered Scholastic Reading Inventory test, which is specifically designed to measure Lexile or reading ability, or by taking a standardized reading test which converts the reader's results to a Lexile measure. The normal Scholastic Guided Reading Lexile ranges for 3rd grade are 100-1120, 180-1280 for 4th grade, and 330-1280 for 5th grade.