From One School
in Natick Massachusetts

To 10,000+ EnrollmentsAcross the Globe

In 2009, Kathleen Tullie, mom and founder of Active Kids (formerly BOKS), read the book, Spark, by Dr. John Ratey. The book clearly set forth the research as to why kids should be active before school and she was inspired to create a program at her children’s elementary school. With school approval and a group of passionate moms, Active Kids was launched. Spread through “word of mom” the program grew virally across the U.S. Today, thanks to passionate volunteers and corporate sponsors, Active Kids is getting children moving in schools and youth organizations across the globe.

Our Mission


Our Vision


Active Kids was inspired by the book Spark, which found:

  • Exercise is… “Miracle-Grow for the Brain”
  • Aerobic activity shaped 19,000students from Naperville, Illinois making them the fittest and some of the smartest in the Nation
  • “Exercise is the single most powerful tool that we have to optimize the function of our brains”
Validated by Research

“Programs such as Active Kids that help children not only develop healthy habits to promote optimal growth trajectories but also promote social and emotional skills that can help them better handle stress, peer interactions, and negative feelings are just what children need and should be broadly scaled. The program’s being school-based and run by volunteers gives it the potential of affecting a large number of children equitably without the need for substantial resources.”

Elsie Taveras, MD
MPH, chief of the MGHfC Division of General Academic Pediatrics

Elsie Taveras, MD

Better standardized ELA test results

Improved shift and working memory skills

Decreased body fat percentage; increased cardiovascular endurance; increased activity time outside of Active Kids

Increased knowledge of nutritional and healthy living concepts

2022 Active Kids by the Numbers


number of content views & downloads


grant funding

Active Kids Burst Subscribers

Kids Active in 2022

Active Kids Video Views

New Resources in 2022

In the News

Active Kids (formerly BOKS) worked with Boys & Girls Clubs of America, Reebok, and Project Backboard to revamp their 3rd basketball court together

Read more here

2021 Impact Report

Frequently Asked Questions

Learn more about Active Kids

Meet the Active kids Team

Kathleen Tullie

Kathleen Tullie

Founder and CEO
Kimberley Medeiros

Kimberley Medeiros

Vanessa Danon

Vanessa Danon

Heidi McGrath

Heidi McGrath

Customer Relations Manager
Heather Chase, M.Ed.

Heather Chase, M.Ed.

Training and Content Specialist

Meet the Active kids Advisory Board

Cedric Bryant

President & Chief Science Officer, American Council of Exercise (ACE Fitness)

Jeff Bellows

Vice President of Corporate Citizenship & Public Affairs, Blue Cross Blue Shield of Massachusetts

Di Hayes

Senior Vice President of Global Business, International Tennis Hall of Fame

David Kaplan

Co-Founder and Managing Member, Shepard-Kaplan LLC

William Nystrom

Founder, Nystrom Beckman & Paris

Elsie Taveras, MD, MPH

Chief, Division of General Academic Pediatrics, MGH & Executive Director, Kraft Center for Community Health, MGH

Dr. John Ratey

Associate Clinical Professor of Psychiatry at Harvard Medical School and Neuropsychiatry Expert

Martina Jahrbacher

Senior Director Business Development Central Europe, adidas AG

Céline Del Genes

Global CCO at Decathlon and Member Board of Directors at Herbalife Ltd.

Yvonne Keusch


Liz McSpedon

Head of Partnerships, NYCPS Office of School Wellness Programs

Kimberly O’Brien

Founder and Director of Unlimited Resilience, a group mental health practice for athletes; former college hockey player at Harvard

Diana Bitzas

Marketing Executive | P&L | Global Business Strategy |

Dr. Elsie Taveras

Chief Community Health Equity Officer for Mass General Brigham

Anna Nolin

Superintendent of Newton Public Schools