• ## How to Make Geometry Your Best Friend (Part 2)

The Pythagorean Theorem is one of the most important theorems that you’ll come across in geometry. However, before we delve into it, first let’s look at…

• ## How to Make Geometry Your Best Friend (Part 3)

If you haven’t discovered Pythagorean Triples yet, then prepare to have your mind blown. Basically, instead of having to use the Pythagorean Theorem to solve for…

• ## How to Make Algebra I Your Best Friend (part 2)

You’ll be drawing lots of graphs of linear equations in two variables in algebra I. For example, y=2x+1. So, what’s a graph? The graph of a…

• ## How to Make Geometry Your Best Friend (Part 1)

Geometry is different from the math that came before it because it requires you to remember definitions and know the difference between definitions and theorems. Also,…

• ## How to Make Algebra I Your Best Friend (Part 1)

Variables are scary because no one ever tells you what a variable is. Until now, you’ve mostly been dealing with particular numbers. Multiplying, dividing, adding, subtracting,…

• ## Clever Trig Substitutions

Let’s say you’ve got some crazy trig equation that you have to solve… something like this… tan^2(x) + tan(x) = 6 And you’ve got to figure…

• ## How to Make Algebra II Your Best Friend (Part 3)

The last thing you need to know to make algebra II your best friend is how imaginary numbers work. They might sound really abstract at first,…

• ## How to Boost Your SAT Score on Test Day (Part 4)

If you don’t know how to solve a math problem on the SAT, here’s a convenient trick that’s super easy to use. If there are variables…

• # Sample Precalculus Problem: Introduction to Sequences

Hey there, Precalculus-studiers! Watch as Brightstorm Math teacher Carl Horowitz explains notations used in sequences. This Introduction to Sequences covers the definition of a sequence and…

• # Algebra 2 Must-Know Shortcuts: Change in y Over Change in x

In your Algebra 2 class, you’ll likely study Graphs of linear equations & Finding the slope of a line from a graph. Change in y Over Change in…