Tyler DeWitt
Tyler DeWitt makes chemistry and biology easier to follow through YouTube lessons, TEAS exam preparation and educational technology.
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Latest
Tyler’s happenings, collected from public sources, plus his backstory and Starbook, where fans write.
Known for
- Hey science teachers, make it fun2012 · TEDxBeaconStreet speaker
TED - Mole Fraction Introduction2024 · Chemistry lesson creator
YouTube - ATI TEAS 7 Full Science Practice Test 20262026 · Teacher and creator
YouTube - Online learning could change academia, for good2020 · TEDxMIT speaker
TED - Macmillan LearningInteractive General Chemistry 2.0 Reactions First2023 · Video contributor
Overview
- Work
- Science educator, video creator and educational technology developer
- Education
- Biology at Brown University; Ph.D. in Microbiology at MIT
- Started
- Filming lessons to help his high school students study at home
- Breakout
- Chemistry lessons on YouTube, followed by his TEDxBeaconStreet talk
Mini bio
A teacher first.
Tyler began making videos while teaching high school after college. His students could follow a lesson in class, then struggle with the textbook at home. Recording his explanations gave them a way to revisit the material. He continued making chemistry videos during graduate school, when the channel began to take off.
Science through stories.
His 2012 TEDxBeaconStreet talk, “Hey science teachers, make it fun,” brought his teaching approach to a wider audience. He argued for lessons built around stories, demonstrations and language that beginners can follow.
Beyond the whiteboard.
His work also includes video authorship for Macmillan Learning’s Interactive General Chemistry and a virtual journey inside a human cell made with Google and XVIVO Scientific Animation. He has worked on AI tutoring at Socratic and VR training for biotechnology manufacturing at Virtuosi VR.
Helping the next group of students.
On his TEAS channel, Tyler now teaches science and works through practice tests for students preparing for nursing and allied health admissions. His 2026 videos also cover math, English, and anatomy and physiology.
Creditschronological, newest first
Teaching videos
- 2026ATI TEAS 7 Anatomy and Physiology Highest Priority Practice QuestionsTeacher and creator
- 2026ATI TEAS 7 Full Science Practice TestTeacher and creator
- 2024Mole Fraction IntroductionTeacher and creator
Digital textbooks
- 2023Interactive General Chemistry 2.0 Reactions First, second editionVideo tutorials and conceptual problem-solving videos
Talks
- 2020Online learning could change academia, for goodTEDxMIT speaker
- 2012Hey science teachers, make it funTEDxBeaconStreet speaker
Awards
Quotes
What are the things that a first-time student is going to be confused about?Tyler DeWitt, ChemMatters
In his February 2026 interview, he explained the questions he asks himself before making a lesson.
Trivia
- His father taught biochemistry at Williams College and explained photosynthesis during their childhood walks in the forest.
- He has taught high school biology, chemistry and English in both the United States and South Korea.
- He was a Graduate Resident Tutor at MIT.
Find Tyler
Follow Tyler’s lessons, practice tests and teaching projects.
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