# Browse

### Kuo-Liang Chang and Ellen Lehet

Defining a quadratic function through the slopes of its secant/tangent lines leads to the fundamental theorem of calculus (FTC) and an alternative way of understanding integration.

### Joanna Papakonstantinou

Students create clever mathematical Valentine’s Day cards.

### Alessandra King

This department provides a space for current and past PK-12 teachers of mathematics to connect with other teachers of mathematics through their stories that lend personal and professional support.

### Lidia Gonzalez

This method using the area of regular polygons inscribed in circles to approximate a value for pi is similar to the method used by Archimedes using circumferences.

### Seán P. Madden, Olli (Sara) Hume, and Jacqueline S. Booton

Mathematics and technology serve the health sciences as demonstrated in this article,cowritten by one of our calculus students. Creating a lesson based on dosing an antibioticallows teachers and students to see the immediate value of high school calculus and technology.

### Paul Naanou and Sam Rhodes

Students grapple with the problem of finding the volume of two different folds of a traditional Levantine dessert using either geometry or calculus.

May 2020 For the Love of Mathematics Jokes

### Christopher Harrow and Ms. Nurfatimah Merchant

Transferring fundamental concepts across contexts is difficult, even when deep similarities exist. This article leverages Desmos-enhanced visualizations to unify conceptual understanding of the behavior of sinusoidal function graphs through envelope curve analogies across Cartesian and polar coordinate systems.