👉 Learn how to determine the transformation of a function. Transformations can be horizontal or vertical, cause stretching or shrinking or be a reflection about an axis. You will see how to look at ...

Last week, educational influencer Zhang Xuefeng passed away suddenly from a cardiac arrest at the age of 41. On Saturday, huge crowds thronged the streets near a funeral home in Suzhou to pay tribute ...

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.

Across the country, 4th and 8th graders are taking the National Assessment of Educational Progress in a range of subjects this month, but I’ll be paying particularly close attention to how middle ...

Earth's rotation is subtly accelerating, and scientists are intently tracking the trend. Usually, our planet takes 24 hours, or 86,400 seconds, to finish one complete spin. However, on July 9, 2025, ...

The making and remaking of Capital. In the first English translation in half a century, Paul Reitter and Paul North distill the essence of the Marxist masterpiece by going back to basics. At any given ...

Sam Raskin has wrapped his head around a math problem so complex it took five academic studies — and more than 900 pages — to solve. The results are a sweeping, game-changing math proof that was ...

What do the integers have in common with the symmetries of a triangle? In the 19th century, mathematicians invented groups as an answer to this question. Mathematics started with numbers — clear, ...