Yay Math! Welcome to the Movement
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Yay Math! Welcome to the Movement

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Videos

Welcome to the first-of-its-kind math video lessons, filmed in a LIVE classroom! The idea of capturing the classroom's energy and fun was born on one of Robert Ahdoot's trips abroad. Since then, YAY MATH has celebrated its fifth year as word has rapidly reached schools and students around the world. Yay Math, and YAY YOU!

Here are some fantastic clips documenting the inception and progression of this vision.

  • Algebra I.
  • Algebra II.
  • Geometry

Algebra I.Not sure which video has the info you need? see the descriptions listed below. Want to get the most out of viewing?
Then first print out the worksheet that lists the problems discussed in the video.
That way, you can work along with the class! Then...
 

Try Yay Math's new online quiz system! Check to see how much you've learned from the video you just watched.

All Algebra I. videos can be found below, listed alphabetically.


Absolute Value Equations

Absolute Value Equations
We try out the projector/whiteboard combo as Yay Math takes on absolute value equations! We investigate "bifurcating" (which sounds like when mathematicians end a relationship) and also situations when there's no solution. Enjoy the magically scrolling screen!

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Absolute Value Inequalities

Absolute Value Inequalities
Absolute value is always positive, so why not take a lesson from it and always be positive too? Inequalities though make absolute value more challenging. We investigate bifurcation and other scenarios. Good energy for this lesson, YAY MATH!

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completing the square

Completing the Square
Hi Algebrinos! As we progress with our problem solving prowess, we include solving quadratic equations by using the nifty method titled, "Completing the square."

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Disatnce Formula Upside Down!

Distance Formula (upside down!)
Have you ever sat in on a math lesson conducted UPSIDE DOWN? Well here's your chance... gravity is taking a back seat for 20 minutes while we YAY MATH our way to learning the distance formula.

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Distance Formula Rightside Up!

Distance Formula (right-side-up!)
For fans of gravity, here is the Distance Formula episode filmed right-side up. YAY MATH!

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elimination method

Elimination Method, Solving 2 Equations
To "eliminate" may make you think of the Terminator. But in Algebra, it's a method of solving two or more equations at the same time. So stop your violent thoughts and enjoy this video... which is the first one we ever filmed! YAY MATH!

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Factoring Differences of Squares

Factoring Differences of Squares
Join us as we learn how to factor difference of squares polynomials, including solving. Can you see anything that passes across the screen? YAY MATH!

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factoring trinomials

Factoring Trinomials (introduction)
Factoring may be THEE most important Algebra concept throughout the entire school year. Here is its introduction, YAY MATH!

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factoring trinomials part 2

Factoring Trinomials (more examples)
Factoring trinomials is one of the bedrocks of Algebra. Why not learn it with spunk, laughter, and gusto? Join in, YAY MATH!

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Factoring using the Berry Method, in Chicago

Factoring Trinomials using the Berry Method, in Chicago (HD)
Yay Math goes national with a trip to Chicago's Elm Place Middle School. With such a wonderful welcome, we factor trinomials using the Berry Method, as well as traditional methods. Check out the Michael Jordan rookie jersey... the rest of the students wore their Chicago/Jordan gear as well, to "gear" up for Yay Math, in HD!

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factoring perfect squares

Factoring Perfect Squares; square root property
Here's a fun look at Factoring Perfect Square Polynomials, as well as solving equations using the Square Root Property. Does it look like the floor is sliding? YAY MATH!

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FOIL - Multiplying Binomials

FOIL - Multiplying Binomials
An inside look into the classroom as we delve into the world of multiplying two binomials, using the classic "FOIL" method. YAY MATH!

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Linear Inequalities

Linear Inequalties
Dressing formal today for Yay Math's tackling of linear inequalities. It's basically graphing with shading. The fun part is, we celebrate all forms of artistic shading on the graph, so try your doodling skills out here, while you learn graphing. YAY MATH!

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properties of real numbers

Properties of Real Numbers
YAY MATH is back with an all new episode! What kind of numbers are out there in the world? Natural, Whole? Can a number be as irrational some people? Find out with YAY MATH!

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Pythagorean Theorem

Pythagorean Theorem
Sure, technically it's a Geometry topic, but why not learn about it in Algebra? Don't be lured into a false sense of security, there may be problems on this video that you won't be able to do... YAY MATH!

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quadratic formula

Quadratic Formula
"This is a story about a negative boy... who couldn't decide to go to a radical party..." for more info about this story, watch the video, YAY MATH!

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Quadratic Functions

Quadratic Functions (Parabolas)
This lesson includes the basics of graphing the parabola, or, quadratic functions. Enjoy the music in this one, YAY MATH!

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Radical Equations

Radical Equations
We hope you enjoy this relatively short clip of only 13 minutes, which describes how to solve equations with radicals in them. This one has good energy. YAY MATH!

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Radical Expressions

Radical Expressions
The Mathemagician is back, and he will WOW you with multiple examples of operations on square roots. Enjoy the magical way he erases the board... YAY MATH!

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Radical Expressions

Relations and Functions
The Mathemagician is back, and he will WOW you with multiple examples of operations on square roots. Enjoy the magical way he erases the board... YAY MATH!

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Simplifying Radicals

Simplifying Radicals
An introductory look into simplifying radicals, also known as simplifying square roots. YAY MATH!

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Simplifying Radical Expressions (part 2)

Simplifying Radicals (part 2)
Here, we are simplifying radicals, or simplifying square roots. Specifically, we cover how to take the square root of variables, as well as how to simplify square roots in the denominator. YAY MATH!

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Slope

Slope
The rate at which a line slants is the slope. Many students learn it as "rise over run." Here, we cover it all, including positive slopes, negative slopes, horizontal lines, vertical lines, calculating the slope between two points, parallel lines, and perpendicular lines. Either way, it's slopealicious. YAY MATH!

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Solving Systems by Graphing

Solving Systems of Equations by Graphing
MathemaSUNSHINE? Optimistic indeed. In solving systems of equations, the first method which should be taught is through graphing, to understand the underlying concept. Where do the two lines intersect? That is the solution. Come find it with us, YAY MATH!

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Algebra II.Not sure which video has the info you need? see the descriptions listed below. Want to get the most out of viewing?
Then first print out the worksheet that lists the problems discussed in the video.
That way, you can work along with the class! Then...
 

Try Yay Math's new online quiz system! Check to see how much you've learned from the video you just watched.

All Algebra II. videos can be found below, listed alphabetically.


Complex Numbers

Complex Numbers
YAY MATH would like to introduce to you the imaginary number " i " Check out how we simplify expressions involving the square roots of negative numbers. YAY MATH!

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Combinations

Combinations
How many different poker hands exist? In this lesson, we answer that question and many others like it, using the statistical concept known as Combinations. After a brief review of Permutations, we answer questions about arrangements when the order of the items does not matter. But you matter, always. YAY MATH!

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Conic Sections - Circles

Conic Sections - Circles
If I were a shape, I would definitely be a circle. I like the expression "full circle", I like the feeling of wholeness, connectedness, etc., so why not learn how to graph these things? Fortunately, it's the easiest of the conic sections. YAY MATH!

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Conic Sections - Ellipses

Conic Sections - Ellipses
Conic sections CAN be fun, with proper knowledge. Ellipses are another of the conic sections. We discuss the major and minor axes, the focii, and graph in detail. Hope you enjoy the roller coaster story! YAY MATH!

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Conic Sections - Hyperbolas

Conic Sections - Hyperbolas
Here are a couple examples of hyperbolas, starting at various points. Asymptotes, focii, and full graphing instructions provided. YAY MATH, and YAY YOU for that matter!

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Conic Sections - Parabolas

Conic Sections - Parabolas
Join the fun as we begin our exploration of the parabola. We discuss the axis of symmetry, the focus, the vertex, and doing math on Oprah one day. YAY MATH!

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Direct & Inverse Variation

Direct & Inverse Variation
Word problems? Ugh. Enter the world of YAY MATH which we break down these kinds of variation problems to that relieving phrase, "oh, it's not that bad..." Notice the board is erased by blowing on it...

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Discriminant

Discriminant
When solving with the Quadratic Formula, the "discriminant" is the value that helps you figure out the types of solutions. Yes, it does remind me of the word "discrimination," even though it has nothing to do with that. I guess I've spent so much time in school studying about it, it's at the tip of my tongue. Either way, through the Quadratic Formula, these formulas are no match for our tolerant class, YAY MATH!

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Dividing Polynomials

Dividing Polynomials
Join us as we cover the division of polynomials by long division. The students came up with their own YAY MATH version of "High School Musical"... which inspired dance.

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Exponents

Exponents
Big crossover topic from Algebra 1 to Algebra 2, on exponents. Here we multiply exponents, divide exponents, and raise them to powers. I hope this video can improve your abilities, exponentially! YAY MATH!

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Exponential & LoG Equations

Exponential and Log Equations
Solving exponential equations and/or logarithmic equations can be challenging, but in the world of YAY MATH, anything is possible.

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Factoring the Berry Method

Factoring - Berry Method
The energy of the students in this lesson is so wonderful! The lesson is done in "surfer dude" mode, by popular request. We all know that there are many methods of factoring out there. Here's another discovered method, called the "Berry Method". It takes a lot of the guess work out. YAY MATH!

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Inverse Functions

Inverse Functions
This lesson is an intro to inverse functions and has a step-by-step way to solve them in a straightforward way. YAY MATH, boo.

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Logarithms (properties)

Logarithms (properties)
This lesson shows the main properties of logarithms as we tackle a few problemos using them. YAY MATH, peeps.

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Matrices

Matrices - Introduction
Here we take a quick introductory look at how matrices work. It's a good way to get acquainted with them if you haven't been exposed yet. Hope you enjoy the music that it's set to as well! Yay Math!

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nth Roots & Radical Operations

nth Roots & Radical Operations
Here we discuss square roots, cube roots, and fourth roots of numbers and variables. Then we go over some main properties of radical expressions, including removing radicals from the denominator. YAY MATH!

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Operations on Functions (f o g)(x)

Operations on Functions (f o g)(x)
Welcome to Algebra 2, where we use two given functions to solve a bunch of problems associated with them. Good karma in the room, can you feel it? YAY MATH!

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Solving Polynomial Equations

Polynomial Equations (solving)
At the beginning of class, we make a pledge to stay positive and not let the math intimidate us. Well, it worked. We took that good energy and used it to solve polynomial equations of varying degrees. In a touching moment, the students said I'd be a good dad - wow - I love this work. YAY MATH!

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Polynomial functions

Polynomial Functions
Welcome to a discussion on polynomial functions! We discuss odd functions, even functions, positive functions, negative functions, end behavior, and degree. WOW quite a information collection! Hopefully this lesson breaks all that down so that it's easily understood. Thank you for watching, YAY MATH!

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Permutations

Permutations
Introducing the matheMEDIC! Here we resuscitate a lesson in probability, called permutations. In our "operations" we calculate several scenarios in which order matters, like running a race or managing a lineup at a festival. We also "cut open" the Fundamental Counting Principle and fortunately "insure" that you'll be able to do these on the calculator. YAY MATH!

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Quadratic Functions

Quadratic Functions
Quadratic functions are such a challenge, because there are so many ways to approach them. Here, we talk about their solutions, or, when the graph hits the x-axis. Then we solve a few quadratics by factoring to link in the algebra work. Fun group today, YAY MATH!

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Radical Equations

Radical Equations
Here we tackle equations involving radicals in multiple powers. Like the Maryland basketball jersey? Check out the unconventional way we ended this lesson... YAY MATH!

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Radical Expressions

Radical Expressions
This covers how to rationalize square roots, even complicated ones! This clip includes some subtitles to help you along. YAY MATH!

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Radical Expressions (more)

Radical Expressions (more)
We took a turn for the international here, doing hand symbols for universally known gestures, all of a sudden. AND, we conquer radical expressions, with different power radicals, with various exponents, using numbers and variables. We rationalize the denominator like it's our JOB. (Well, it is). Nice energy in this one, YAY MATH!

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Solving Rational Equations

Rational Equations (Solving)
Solving Rational Equations means knowing how to manipulate fractions that include variables in order to solve. YAY MATH!

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Rational Exponents

Rational Exponents
Join the mathemagician's adventure into simplifying expressions with different exponents. Fractional exponents, negative exponents, and roots of varying powers. YAY MATH!

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Rational Expressions - Graphing

Rational Expressions - Graphing
Your requests have gone noticed; we have now filmed a lesson on graphing rational expressions! This is part 1 of 2, covering vertical asymptotes and holes in the graph. Part 2 covers horizontal asymptotes and graphs several examples. YAY MATH!

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Rational Expressions - Graphing (part 2)

Rational Expressions - Graphing (part 2)
Here is the second installment on graphing rational expressions! This is part 2 of 2, covering vertical asymptotes, horizontal asymptotes, holes in the graph (point discontinuity), and factoring before graphing. Part 1 introduces horizontal asymptotes and graphs several examples. YAY MATH!

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Solving 3 equations, 3 variables

Solving 3 equations, 3 variables
Welcome to the land of the Math King, where equations are solved through the majestry of the KING. 3 equations are no match for the king. YAY MATH!

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Square Root Functions & Inequalities

Square Root Functions & Inequalities
In this lesson, after "yay math"ing in opera tones, we plunge into graphing square root functions and inequalities. Gotta love the energy, YAY MATH!

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Synthetic Division

Synthetic Division
Welcome back Yay Mathers! Synthetic Division can be a beast, unless you know what you're doing. In that case, it's light and easy, like asparagus, as one student put it. The class is on today, it's a good one. YAY MATH!

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Systems of Equations

Systems of Equations
Join us as we tackle solving 2 equations having 2 unknowns. It's the elimination method gone wild. YAY MATH!

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Trigonometry Intro

Trigonometry Intro
Ever wanted a basic look at the working of trig? Ever wanted to help others in your class? Then watch this... degrees, radians, sin, cos, tan... it's all packed in here.

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Trigonometry Functions

Trigonometry Functions
We're back in HD, covering an in-depth look at trigonometry. We cover the gamut here: theta, conversions between radians and degrees, the six trig functions (sin, cos, tan, csc, sec, cot), Pythagorean Theorem, inverse trig, 30-60-90 triangles, 45-45-90 triangles, quadrants, and pi are no match for the math authority here. YAY MATH!

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GeometryNot sure which video has the info you need? see the descriptions listed below. Want to get the most out of viewing?
Then first print out the worksheet that lists the problems discussed in the video.
That way, you can work along with the class!

All Geometry videos can be found below, listed alphabetically.


 


Bonus Video: Finite Math!


Credit Card Interest

Credit Card Interest
Not all math centers around algebra and geometry. Here's a lesson in consumer math, regarding how the credit card companies assess interest on debt using the average daily balance method. A hugely important topic for all of us, especially in today's economy, it 'pays' to be wiser. YAY MATH!

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Geometry Videos


angle_relationships

Angle Relationships
Welcome to the kick-off Geometry lesson! This is done in tribute to Michael Jackson. We discuss angle relationships such as supplementary and vertical angles and we do a few exercises involving working with figures. Thank you for watching, YAY GEOMETRY!

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Area Overview

Area Overview
Once and for all, a video exists that encompasses (no pun intended) the area of every major shape in Geometry and by default, the SAT. Those shapes include: the square, rectangle, parallelogram, rhombus, triangle, trapezoid, and circle. We even do an inscribed shapes example, because we're ambitious like that. Print the worksheet and work with us, YAY MATH!

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Circles Inscribed Angles

Circles - Inscribed Angles
The MathemaGYPTIAN is back with a video on inscribed angles in circles. The lesson begins and ends with a free-style rap, and in between we solve four circles for their inscribed angles. Great interaction and learning today, YAY MATH!

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Circles Intro

Circles Intro
Introducing our featured character, The MathemaGYPTIAN! Math is now taught by this modern pharaoh, as we fittingly build upon one of the most ancient shapes in history: the circle. Area, circumference, arc length, arc measure, sectors, and chords are covered here. Great class energy too, YAY MATH!

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Deductive Reasoning

Deductive Reasoning
Surfer dude returns for a Geometry video on Deductive Reasoning. Dude, we discuss two primary concepts, dude: The Law of Syllogism and the Law of Detachment. YAY MATH!

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Geometric Mean

Geometric Mean
This lesson covers the rules for geometric means, then tackles two similar triangle problems which use those rules. However, Yay Math teaches the lesson in a way that removes any need for memorization, and turns the problems into easy to understand logic puzzles. Hope you like the method, YAY MATH!

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Inductive Reasoning

Inductive Reasoning
Logic can be so illogical at times. Join us as we tackly inductive reasoning and take a look at concepts such as the converse, inverse, and contrapositive of statements. The space costume is on for the first time, so Yay Math is now officially out-of-this-world. YAY MATH!

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Isosceles Triangles Introduction

Isosceles Triangles Introduction
Working with angles and sides for isosceles triangles follows certain patterns. Namely, if two sides are the same, then their opposite sides are the same too. Easy enough? Find out for yourself as we practice. YAY MATH!

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Isosceles Triangles - practice and proof

Isosceles Triangles - practice and proof
Dear Isosceles triangle, thank you for being considerate enough to have at least two sides and two angles congruent. So many triangles can be so inconsistent, but you're just more reliable. I hope to be able to understand you better as we spent more time together. This is truly a love triangle, thank you. Yours, the people. YAY MATH!

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Parallel Lines and Transversals

Parallel Lines and Transversals
Parallel Lines is a main topic in Geometry, and comes up many times on the SAT. Join us in this introductory lesson that discusses the five main angle relationships of parallel lines: corresponding, alternate interior, alternate exterior, same-side interior, and same-side exterior. This lesson is in securty guard style, green flashlight included. YAY MATH!

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Parallelograms

Parallelograms
The MathemaCHICKEN is back and were clucking our way to understanding parallelograms! There are several rules for parallelograms, which we discuss. Then we tackle a typical example of a parallelogram exercise. Or, exer-baGOK!-cise. YAY MATH!

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Parallelograms

Proofs - Angles
Money math is back for a chill lesson on completing a proof involving angles. This proof touches on complementary angles, definition of congruent angles, Angle Addition Postulate, and substitution. YAY MATH!

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CPCTC

Proofs - CPCTC
For some peculiar reason, many students seem to dislike proofs. How could I blame them for that? Thankfully, we've created a video introducing the concept of CPCTC, or Corresponding Parts of Congruent Triangles are Congruent. We then tackle a triangle proof using it. YAY MATH!

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Intro to proofs

Proofs - Intro
Math money, baby! In this important lesson, we introduce the concept of proofs in Geometry. We start with a quick run through of some common properties, then we solve 2 proofs. The first is an algebraic proof, then the second one is a brief one on segments. Let's throw money at these problems. YAY MATH!

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Geometry - Segment Proofs

Proofs - Segments
Hola YayMathers! Proofs are the biggest challenge in any Geometry curriculum. Here we complete a proof involving segments. Stay tuned to the end of the clip for a fun dancing student eraser cameo! YAY MATH!

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Geometry - Triangle Proofs

Proofs - Triangles
Proofs give students much trouble, so let's give them some trouble back! In this lesson we cover the four main methods of proving triangles congruent, including SSS, SAS, ASA, and AAS. We cover CPCTC as well. In the two proofs covered, one involves parallel lines and the other triangles back to back, using the reflexive property. YAY MATH!

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Geometry - Similarity

Similarity
When shapes have the same proportions, they are called 'similar'. That means they could look the same, but one is bigger and the other could be a 'mini-me'. Join our class as we discuss how similar shapes work and how to find missing sides. Hope you enjoy the t-shirt, slightly politically edgy... YAY MATH!

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Geometry - Squares & Rhombi

Squares and Rhombi
Here we cover 4-sided shapes: rectangles, squares, and the plural of rhombus: rhombi. Many properties of rhombi and squares are covered. YAY MATH!

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Geometry - 30-60-90 Triangles

Triangles (30 - 60 - 90)
British accent: "Ready for some maths?" The Math "Bobby" introduces us to the concept of the 30-60-90 triangle. This is a pivotal lesson, covered in the SAT, ACT, and scores of other placement/achievement tests. The 30 60 90 is a topic is pivotal in Geometry, so let the Math "Bobby" and class break it all down. YAY MATH!

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Geometry - 45-45-90 Triangles

Triangles (45 - 45 - 90)
Math Bobby returns for a follow-up lesson on the famous 45-45-90 triangle. Geometry is no match for the guardian of knowledge, the triangular triumph, the right angle wrangler! We go through several examples, including references to the SAT. YAY MATH!

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Geometry - Triangle Congruence (ASA, AAS)

Triangle Congruence (ASA, AAS)
When mathematicians have a sway in their step, they are called mathemaLIMPINz. Join the mathemaLIMPIN as we explore two rules that make triangles congruent. Good vibes in the class on this one, YAY MATH!

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Geometry - Triangle Congruence (SSS, SAS)

Triangle Congruence (SSS, SAS)
French math? Well, maybe not, but at least Im wearing a knitted beret. In this lesson, we introduce two rules that prove triangles congruent: SSS and SAS. Once we understand those, we complete two applicable proofs. Enjoy with your caviar, YAY MATH!

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