Khan Academy: 1. String Art

Practice storing strings in computer programs, in this set of free practice questions designed for AP Computer Science Principles students.

The sequel to Polar Coordinates 1 from the Khan Academy, this segment goes through some examples on converting polar coordinates to rectangular coordinates and converting a Cartesian equation to a polar equation. Graphing is also used to...

This video follows from Khan Academy: Sequences and Series (Part 1) and furthers the idea of the basic geometric series. Explains how to find the sum of both a finite and an infinite geometric series. Uses limits to find the sum of an...

A continuation of the video Limit Examples (Part 1), also from the Khan Academy. Addresses the case where the limit of a function is equal to infinity. Examples are explained both graphically and tabularly. [6:58]

This video demonstrates how to solve a one-step equation using division and multiplication. It also shows how to check the answer by plugging it back into the equation. [2:23]

This video demonstrates how to solve a one-step equation using addition and subtraction. It also shows how to check the answer by plugging it back into the equation. [1:54]

This video demonstrates on how to solve a one step equation involving addition, subtraction, multiplication, and division. There are six sample problems that include positive and negative integers, fractions, and decimals. Practice...

A guide that maps Khan Academy content to Big Ideas Math Algebra 1.

This video lesson from Khan Academy is designed for high school, or college students, who are enrolled in a computer science course. This lesson provides challenges with prime numbers and actorization, information that will later connect...

How can we calculate a weighted average between two points? (pssst. This video is super important)