Meet Tobi & Marianne

The Think Big Learning team is made up of Marianne Dobrovolny and Tobi McMillan. We have been working together in various capacities in science education since 2004. We met when Marianne did her student teaching in Tobi’s classroom, we later taught at the same school, have served as science specialists together, and have been collaborating on curriculum and professional development for almost two decades.

We have done professional development all over Texas, the United States, and once even had the pleasure of working with teachers in Papua New Guinea! We launched Think Big Learning together in 2017, continuing our roles as educational consultants and providing instructional resources to teachers.


Tobi is originally from Lubbock, Texas, where she still lives today. She loves supporting Texas Tech sports, running, biking, traveling, and spending time with family and friends. Some of her favorite trips have been sporting events with her dad, including supporting their Red Raiders at the Final Four and watching Phil Mickelson win the PGA Championship in 2021. 


Although Marianne is a Texas native, she currently calls Nashville, Tennessee home. Some of her best days include relaxing at the lake, mountain biking, laughing with friends, and cooking for others. Her other favorite pastime is spoiling her nephews! 

We look forward to additional adventures and more opportunities to work with amazing teachers and students. You can reach out to us here and let us know how we can help you!