Instructional Video
Curated OER

SAT Prep: Test 4 Section 4 Part 2

9th - 12th
Problems 7-11, which involve both geometry and algebra problems, allow students to practice transitioning between skills. Sal takes time to explain the process of each problem so that students will understand the test strategies as well...
Instructional Video4:54
Khan Academy

Example 4: Factoring Quadratics as a Perfect Square of a Difference: (a-b)^2

9th - 11th
Introduce young mathematicians to the concept of factoring trinomials with perfect squares. This descriptive video provides a meaningful explanation of the factoring process. Each step is carefully written out in various colors during...
Instructional Video5:48
Curated OER

How Do You Subtract Radicals with Unlike Radicands?

8th - 11th
Radicals , radicands , square roots, perfect squares, and subtracting? Sounds complicated, especially because the radicals are not the same in this problem. So, there's a lot of math work to do here. Watch this video to find out how to...