Learn how to compose two linear functions. To compose two functions means to express one of the functions as a function of the other function. This is done by replacing the input variable of one of ...

I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips.

The Central and Eastern European Schools Association (CEESA) Middle School Math Counts competition participants visited University of Helsinki and explored different fields of science with various ...

March 20, 2026 • A multi-year megadrought in the Western U.S. has claimed untold populations of wild plants. Amid the conditions, some have survived. Scientists have produced a stunningly complete ...

Singer Jewel shares her latest work and how her collaboration with open data from NASA, NOAA, USGS, and NSF comes together to show how creativity helps people connect more deeply to their environment ...