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Algebra

11103 min11part Algebra course57 CQ
In this algebra course, discover the insandouts of quadraticsand learn how to solve equations by graphing, factoring, completing the square, and using the quadratic formula.
In this algebra course, discover the insandouts of quadraticsand learn how to solve equations by graphing, factoring, completing the square, and using the quadratic formula.

16206 min16part Algebra course111 CQ
Whether you are a math student, or an adult seeking a refresher, it is time to brush up on Algebra! In this course, master algebraic concepts from start to finish!
with Al RichardsWhether you are a math student, or an adult seeking a refresher, it is time to brush up on Algebra! In this course, master algebraic concepts from start to finish!

1293 min12part Algebra course54 CQ
New to algebra and confused by its concepts? In this Algebra I course for beginners, Math Fortress provides clear and concise explanations, starting with variables and ending with word problems.
with Math FortressNew to algebra and confused by its concepts? In this Algebra I course for beginners, Math Fortress provides clear and concise explanations, starting with variables and ending with word problems.

10119 min10part Algebra course66 CQ
Does solving for x make your head spin? Math teacher Eric Buffington explains the simple steps to finding x, from onestep addition problems to equations with x on both sides of the equals sign.
with Eric BuffingtonDoes solving for x make your head spin? Math teacher Eric Buffington explains the simple steps to finding x, from onestep addition problems to equations with x on both sides of the equals sign.

13119 min13part Algebra course66 CQ
Now that you have algebra basics down, it's time to delve into quadratic equations. In this math course, students learn how to solve binomial and trinomial quadratic equations through factoring.
with Math FortressNow that you have algebra basics down, it's time to delve into quadratic equations. In this math course, students learn how to solve binomial and trinomial quadratic equations through factoring.

624 min6part Algebra course16 CQ
This course from You Do the Maths covers the definition of exponents, their unique types, as well as the different ways to simplify and solve the algebraic equations in which they appear.
with You do the MathsThis course from You Do the Maths covers the definition of exponents, their unique types, as well as the different ways to simplify and solve the algebraic equations in which they appear.

412 min4part Algebra course9 CQ
Learn to solve algebra equations, such as adding, subtracting, multiplying, and more, and review how to break word problems down into algebraic equations using variables, coefficients, and constants.
with You do the MathsLearn to solve algebra equations, such as adding, subtracting, multiplying, and more, and review how to break word problems down into algebraic equations using variables, coefficients, and constants.

829 min8part Algebra course20 CQ
This course from You Do the Maths explains the basic process behind factoring numbers and simple algebraic terms, then moves on to factoring more complex quadratic functions of different kinds.
with You do the MathsThis course from You Do the Maths explains the basic process behind factoring numbers and simple algebraic terms, then moves on to factoring more complex quadratic functions of different kinds.

13111 min13part Algebra course62 CQ
Can't make heads or tails of numerators and demoninators? In this basic arithmetic course, certified teacher Eric Buffington explains the ins and outs of fractions.
with Eric BuffingtonCan't make heads or tails of numerators and demoninators? In this basic arithmetic course, certified teacher Eric Buffington explains the ins and outs of fractions.

5 minAlgebra lesson3 CQ
In this lesson, you'll learn how to solve onestep equations with a single variable involving addition, subtraction, multiplication, and division.
with Eric BuffingtonIn this lesson, you'll learn how to solve onestep equations with a single variable involving addition, subtraction, multiplication, and division.

13 minFREEAlgebra lessonFree7 CQ
Learn how to solve three multistep equations and two multivariable equations and review important algebraic concepts as you follow along with this lesson.
with Open Window LearningLearn how to solve three multistep equations and two multivariable equations and review important algebraic concepts as you follow along with this lesson.

17 minFREEAlgebra lessonFree9 CQ
In this lesson, gain an introduction to algebraic equations by learning what they are, how to solve them, and trying out several equation examples.
with Open Window LearningIn this lesson, gain an introduction to algebraic equations by learning what they are, how to solve them, and trying out several equation examples.
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325 min3part Biology course14 CQ
Preparing for the AP Biology exam? In this threepart course, get clear explanations of Darwinian evolution by natural selection, modern evolutionary theory, and the history of life on Earth.
with Bleier BiologyPreparing for the AP Biology exam? In this threepart course, get clear explanations of Darwinian evolution by natural selection, modern evolutionary theory, and the history of life on Earth.

7107 min7part iOS Development course57 CQ
Looking for a programming language that can do some heavylifting but doesn't take years to master? When programming for iOS, OS X, and watchOS, Apple's programming language Swift is the best choice!
with Sanjay NoronhaLooking for a programming language that can do some heavylifting but doesn't take years to master? When programming for iOS, OS X, and watchOS, Apple's programming language Swift is the best choice!

11163 min11part iPhones + iPads course88 CQ
Want to get the most out of your iPhone? This course from tech expert Todd Olthoff is the perfect guide, for everything from basic installation to builtin app features.
with Todd OlthoffWant to get the most out of your iPhone? This course from tech expert Todd Olthoff is the perfect guide, for everything from basic installation to builtin app features.

41572 min41part Arduino course303 CQ
Want to build a new robot friend? How about create a cool LED sign? Whatever the gadget may be, get started with this beginnerfriendly Arduino course from Open Source Hardware!
Want to build a new robot friend? How about create a cool LED sign? Whatever the gadget may be, get started with this beginnerfriendly Arduino course from Open Source Hardware!

1270 min12part Science course41 CQ
If you're looking for fun activities for kids that are equal parts science and craft, you'll love this course with lessons covering everything from homemade oobleck to egghead gardens.
with Sophie's WorldIf you're looking for fun activities for kids that are equal parts science and craft, you'll love this course with lessons covering everything from homemade oobleck to egghead gardens.

4104 minFREE4part Engineering courseFree54 CQ
Building a computer from scratch? Watch how to do each step from start to finishâ€”from choosing the right computer hardware, to installing the motherboard, to booting up your new DIY computer!
with Carey HolzmanBuilding a computer from scratch? Watch how to do each step from start to finishâ€”from choosing the right computer hardware, to installing the motherboard, to booting up your new DIY computer!

11110 min11part Computer Science course61 CQ
Learn how to set up a doityourself home wireless network in this course. From terminology and equipment to setup and best practices, this handson IT course teaches how to build a wifi network.
with CPU ModderLearn how to set up a doityourself home wireless network in this course. From terminology and equipment to setup and best practices, this handson IT course teaches how to build a wifi network.

958 min9part Engineering course32 CQ
Sensors perform a hugely valuable function in electronic devices, and in this course, electrical engineer Dorian McIntire provides an indepth look at how different kinds of sensors operate.
with Dorian McIntireSensors perform a hugely valuable function in electronic devices, and in this course, electrical engineer Dorian McIntire provides an indepth look at how different kinds of sensors operate.

1582 min15part Engineering course50 CQ
In this course, learn what defines the discretetime Fourier transform, how it is related to different signal functions, as well as how to evaluate its properties numerically and graphically.
with Anish TurlapatyIn this course, learn what defines the discretetime Fourier transform, how it is related to different signal functions, as well as how to evaluate its properties numerically and graphically.

633 min6part Engineering course20 CQ
Are you an electronics hobbyist who wants to start building simple electronic circuits with LEDs? This course is a great way to apply a circuitry foundation and learn a bit of electrical engineering!
with Surya PenmetsaAre you an electronics hobbyist who wants to start building simple electronic circuits with LEDs? This course is a great way to apply a circuitry foundation and learn a bit of electrical engineering!