In August 2019, Superintendent Dr. Kimberly Berman motivated the entire Mill Valley School District staff to participate in “30-Day Challenges” throughout the 2019-20 school year, with the intent of making small intentions into powerful changes every day.   Fast forward to May 13, 2022, 1001 days later, you will find four driven and dedicated Middle School staff continuing the challenge they started together two and a half years ago.