Thank you to everyone who used Biology Simulations in 2021! 2020 was a year of growth for the site, largely driven by a need for digital materials following the sudden shift to remote learning in the Spring of 2020. In 2021, with most schools back to in-person instruction, the site continued to grow as teachers who may have initially found the site during shutdowns continued to use it for their classes.

In 2021, three new simulations (hematocrit, enzymes, and diffusion/osmosis) were introduced. In addition, existing simulations, including sexual selection, populations dynamics, and the heredity simulations received updates. The available Google Doc worksheets also expanded, making it easier for teachers to edit and share virtual labs with students. The games section grew, with additions to the anatomy labeling practice and a new AP Biology review game. A new YouTube channel exists for the site, although there isn't much content yet. The site also now has a Redbubble store with a selection of associated merchandise.

In 2021, the site had over 439,000 users, from all over the world. While most users were in the U.S., 18 other countries had at least 1,000 users. Thirteen simulations/games had at least 10,000 unique page views over the year. Here's a rundown of the top 5 most used simulations of 2021.

When I started making these simulations in 2018, I only had my own students in mind. Once I had some content made, I figured if it works for me, it may work for others, and so I made the simulations accessible to others by making the Biology Simulations website. When the site first went live, I thought it would be cool if anyone else used it, but I did not imagine the large numbers of teachers and students that would use the site.

Best Wishes for 2022!