Classroom engagement tools built for chemistry students

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Here's what they're saying




My students were having so much fun with Chem101, I actually had to kick them out at the end of class by telling them they could play with it at home at any time. In addition, their normalized learning gains on the common final exam were significantly higher than those of students in sections that did not use the app.

Kathleen Kolbet

Professor of Chemistry,

Truckee Meadows Community College

I really enjoyed using Chem101! I felt like I was playing a game on my phone instead of doing homework. This app is effective, designed well, and makes learning chemistry fun!

Christina D.

Student in CHEM1040,

University of Cincinnati

Chem101 allows my students to draw Lewis structures intuitively with very little learning curve so more time can be spent learning chemistry and less time learning the program. My students and I both enjoyed having a large pool of practice questions to choose from to master the material.

Daniel Waddell

Assistant Professor of Chemistry,

University of Cincinnati

Compared to other websites such as Sapling, Chem101 was simpler to navigate, easier to complete specific activities such as drawing Lewis structures, and overall a better experience for learning. I also preferred Chem101 to clickers simply because it is more interactive than choosing a multiple choice option.

Zack M.

Student in 09-105,

Carnegie Mellon University

While testing Chem101 in my class, I noticed students were engaged and I never heard the typical “huh” I normally obtain when I ask them to pull out their clickers. This app is a terrific tool for students and it would be great if it could be expanded to also cover other topics in chemistry.

Daniele Ramella

Assistant Professor of Chemistry,

Temple University

I enjoyed using Chem101 for Lewis structures because it really helped me visualize where everything needed to go. It makes it easy to explore other possible Lewis structures and fix mistakes. A dynamic app like this is great for visual/kinesthetic learners.

Kelsey C.

Student in GenChem121,

Duquesne University

It was a delight to hear the "buzz" of students talking to each other as they did the questions. Students also seemed to enjoy using Chem101 and learning from the app. I would highly recommend it to anyone who teaches a class in general chemistry, particularly in a large lecture hall.

Ruben Savizky

Professor and Lecturer of Chemistry,

The Cooper Union, Columbia University

Chem101 was the best app that I have ever used for school. It was clear and explained things very well when answering questions. Using the app in class made learning chemistry fun and easy.

Garrett C.

Student in GenChem121,

Duquesne University

We’re reimagining the college STEM classroom with active learning

The college STEM classroom hasn’t fundamentally changed in centuries. For many math and science students, their course experience mainly involves sitting in a large lecture hall while listening to a professor talk for an hour straight. Unsurprisingly, this form of passive learning leads to poor student outcomes, where an astounding 40% of aspiring STEM majors dropout. While clickers and e-books have brought some technology into the classroom, these tools still rely on static content and generic multiple choice questions.

Our first product, Chem101, provides subject-specific tools for chemistry professors to engage their students in the classroom with active learning. For example, Chem101 features a module that allows students to intuitively draw and visualize Lewis structures on their personal devices. Rather than multiple choice questions, students draw and submit molecular structures in assignments that professors push out during lecture. Students get automated feedback on their answers and professors see what their entire class is drawing in real time so they can promote a class discussion about common mistakes.

Chem101 was piloted with 2000 students during the Fall 2016 semester at 8 colleges/universities across the U.S. including Carnegie Mellon University, Columbia University, and the University of Cincinnati.

  • 40% of students said using Chem101 made them more interested in chemistry after using the product for just 2-3 weeks of the curriculum
  • 77% said they preferred Chem101 over existing course tools, i.e. clickers
  • Students who learned Lewis structures using Chem101 performed up to 200% better compared to those who used traditional learning tools (based on pre and post-semester testing)
  • We are growing a team of visionaries to expand our approach into a broad range of math and science topics that cause pain to millions of college STEM students every year. With more engaged students, we aim to reduce the STEM major dropout rate, fill the workforce gap, and help inspire the next generation of scientists, engineers, and technologists.

    Meet the team defining the future of educational software

    Justin Weinberg


    Justin is the visionary behind 101 and has been teaching forms of math and science for nearly a decade as a tutor and a university TA. Prior to 101, he created Chem Pro, a mobile app with over 500K downloads that is designed to help students learn chemistry with video lessons. Now, Justin is leading 101 to bring its classroom engagement tools to college STEM courses across the country. Justin is a PhD candidate in chemical engineering at Carnegie Mellon University and is a recipient of the prestigious National Science Foundation (NSF) Graduate Research Fellowship.

    Igor Belyayev


    Igor leads technical development at 101, responsible for bringing our novel interactive experiences to reality on iOS and Android. He's worked as a mobile developer at startups like and Hackerati, as well as media companies like The Huffington Post and Viacom. Igor holds a bachelor's degree in mechanical engineering from The Cooper Union. Igor and Justin have been working together since 2011 when they originally teamed up to develop the first Android version of Chem Pro.

    Bharani Rajakumar


    Bharani is the co-founder and CEO of LearnBop, which develops an interactive learning system for K-12 math students. At an early age, Bharani recognized the inequities in education and created LearnBop to make high quality educational support available to every student everywhere. After five years of hard work, his vision has become a reality, and students are seeing real gains as a result of the data-driven, step-by-step approach he helped develop.

    Harris Goodman


    Harris is currently the Vice President of Business Development at Achieve3000 where he helps build strategic partnerships with the edtech community and drives revenue growth. Prior to Achieve3000, he co-founded Late Nite Labs, which focused on developing highly immersive digital labs for college science students. At Late Nite Labs, Harris spearheaded and secured a Series A investment, helped build out the organization, and managed the sale to Macmillan New Ventures all while helping the company grow 200% in under two years.

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