When I was in middle school, I had a classmate who would look at trigonometric functions and yell, "I will never need these!" ...

This is an updated version of a story first published on May 5, 2024. For many high school students returning to class, it may seem like geometry and trigonometry were created by the Greeks as a form ...

高考阅卷执行“关键步骤赋分”规则，对于函数性质类问题，关键步骤（如定义转化、性质应用）占60%分值，因此准确把握内涵对得分至关重要。通过准确把握概念的内涵与外延，考生能够将陌生问题转化为熟悉领域，提高解题效率和高考成绩。

In 2022, two high school students created a trigonometric proof of the Pythagorean Theorem—something that’s only ever been accomplished by a few professional mathematicians. Now, a new article not ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. In the mid-twentieth century, ...