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Algebra I—Semester A

Invariable fun with variables.

Whether it's your saving grace or your worst enemy, there's no getting around it. Algebra is a part of life. The sooner we accept that, the better.

The fact is no matter where you go or what you do, you'll want a functional relationship with algebra. Its graphing skills are off the charts, and it can simplify your life like no other math can. Sure, it might be a bit radical and irrational from time to time, but it isn't half bad if you just give it a chance. Who knows? It might even be the start of an unlikely friendship. (You + Algebra = BFFs.)

Semester A is all about the essence of algebra: converting numbers to letters. And we'll do it via interactive readings, tons of examples, problem sets, fun activities… well, the list goes on. Needless to say, we've got all the Algebra help (and answers) you'll ever need.

In this Common Core-aligned course, we'll

  • take an in-depth look at numbers, units, and how we can logically apply them to real life. Because, you know, real life is kind of important.
  • convert between radicals and exponents, and interpret expressions accordingly. And by "accordingly," we mean "correctly."
  • expand, factor, and combine polynomials of all shapes and sizes.
  • derive the quadratic formula so that we can create and solve any one-variable equations thrown our way.
  • write linear, quadratic, and exponential functions based on two-variable equations and sequences, and interpret them in context. Yeah, it's pretty exciting stuff.

P.S. Algebra I is a two-semester course. You're looking at Semester A, but you can check out Semester B here.

Course Breakdown

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    Unit 1. Real Numbers and Quantities

    We'll kick off our Algebra learnin' with the good old backbone of mathematics: numbers and logic. Whether we're dealing with rational numbers or irrational ones, we aren't talking about them in a vacuum. (And if we are, get us out of here!) We'll learn how to think about more complicated combinations of numbers, and how to apply them to the real world and make sure our answers still make sense.

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    Unit 2. Radicals, Exponents, and Expressions

    In this unit, we'll start off with a quick guide to exponents and radicals and then dive deep into expressions. We'll be introduced to our new best friends: lines, quadratics, and exponentials. (See? We're already on a first-name basis!) Of course, we can't really feel comfortable until we spend some quality time with them, so we'll finish up by learning how to interpret their behavior. Avoid their death glares like the plague.

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    Unit 3. Polynomials

    Want to learn just about everything there is to know about polynomials? Well, you're in luck. After learning what a polynomial actually is, we'll smush them together and factor them apart using the distributive property, the FOIL method, inspection, trial and error, grouping—just about everything except for the kitchen sink. Actually, we'll probably need that, too.

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    Unit 4. One-Variable Equations and Inequalities

    Much of what we learned about expressions will come in handy when we delve into one-variable equations and inequalities. We'll rearrange and solve equations, factor quadratics and find x values, and even do a little bit of drawing on the number line. Who says art and math don't go together?

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    Unit 5. Two-Variables Equations and Functions

    First, we're going to learn what makes functions different from your run-of-the-mill equations. Then, we'll talk about the similarities and differences between functions and sequences. Finally, we'll use linear, quadratic, and exponential parent functions to answer problems about real world situations. By the end, we'll be able to model everything from movie ticket prices to your chances of surviving the zombie apocalypse.

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