WARNING! A sense of humor is required for this video.
What happens when half the class returns from a school trip? Well obviously, they get pranked by the remaining students and their teacher. What else could there be?
Remember that playing gags is an a...

From yaymath

GULP. The first lesson on Sequences and Series. What are they? Basically lists of numbers. Tah-dah! That helps lift the confusion, I'm sure. If not, then this video will do the job. We'll cover arithmetic sequences, geometric sequences, the difference, th...

From yaymath

GULP. The first lesson on Sequences and Series. What are they? Basically lists of numbers. Tah-dah! That helps lift the confusion, I'm sure. If not, then this video will do the job. We'll cover arithmetic sequences, geometric sequences, the difference, th...

From yaymath

Now, time to tie it all together, and say good-bye to the Commander-in-TEACH, President ObaMATH. 'Twas a good run, showing the world his hidden math talents, specifically regarding trigonometric identities. In this series finale, we solve trig equations, ...

From yaymath

Now, time to tie it all together, and say good-bye to the Commander-in-TEACH, President ObaMATH. 'Twas a good run, showing the world his hidden math talents, specifically regarding trigonometric identities. In this series finale, we solve trig equations, ...

From yaymath

President Barack ObaMATH, in his final days in the West Wing, offers us his hidden talent: verifying trig identities. Using Pythagorean Identities as political strength, he filibusters through several verifications using several strategies offered in the ...

From yaymath

President Barack ObaMATH, in his final days in the West Wing, offers us his hidden talent: verifying trig identities. Using Pythagorean Identities as political strength, he filibusters through several verifications using several strategies offered in the ...

From yaymath

In this "State of the Triangle" teaching address, President ObaMATH explores how to apply sum and difference identities with trigonometry. Trig sum and difference formulas help us evaluate sin, cos, tan, csc, sec, and cot of non special right triangle ang...

From yaymath

In this "State of the Triangle" teaching address, President ObaMATH explores how to apply sum and difference identities with trigonometry. Trig sum and difference formulas help us evaluate sin, cos, tan, csc, sec, and cot of non special right triangle ang...

From yaymath

This video covers Half-Angle Identities, even though the board says Double-Angle. The Commander-in-TEACH returns for another term, to cover these trigonometric identities and simplify trig expressions. We do half-angle identities for all of the trig funct...

From yaymath

It's a ObaMATH marathon, churning out new ones every day! Check this one, on Half-Angle Identities. #math...

From yaymath

This video covers Half-Angle Identities, even though the board says Double-Angle. The Commander-in-TEACH returns for another term, to cover these trigonometric identities and simplify trig expressions. We do half-angle identities for all of the trig funct...

From yaymath

If you know what sin θ is, could you calculate sin 2θ, cos 2θ, and tan 2θ? Before President ObaMATH, maybe not. But after this Commander-In-TEACH, you sure will! With the aid of our awesome Oval Office student team, we continue our exploration into tr...

From yaymath

If you know what sin θ is, could you calculate sin 2θ, cos 2θ, and tan 2θ? Before President ObaMATH, maybe not. But after this Commander-In-TEACH, you sure will! With the aid of our awesome Oval Office student team, we continue our exploration into tr...

From yaymath

The Commander-in-TEACH returns for his second term on trigonometric identities, aka trig identities. Here, we dive into it hard, covering more complex examples. We use factoring, common denominators, and algebra skills for simplifying trig expressions. We...

From yaymath

The Commander-in-TEACH returns for his second term on trigonometric identities, aka trig identities. Here, we dive into it hard, covering more complex examples. We use factoring, common denominators, and algebra skills for simplifying trig expressions. We...

From yaymath

In his last days in the Elliptical Office, the Commander-in-TEACH, President ObaMATH, immortalizes his math skills on video, specifically, teaching us about trigonometric identities. We first review the major trigonometric functions, then get down to busi...

From yaymath

In his last days in the Elliptical Office, the Commander-in-TEACH, President ObaMATH, immortalizes his math skills on video, specifically, teaching us about trigonometric identities. We first review the major trigonometric functions, then get down to busi...

From yaymath

Why are students always like, "PROOFS?? NO!!!!!" It's funny, the system has hijacked them from us well-intended educators. Time to take them back. In this case, we prove equations true by mathematical induction. That basically means, "if the next item in ...

From yaymath

Why are students always like, "PROOFS?? NO!!!!!" It's funny, the system has hijacked them from us well-intended educators. Time to take them back. In this case, we prove equations true by mathematical induction. That basically means, "if the next item in ...

From yaymath

In the sequel to part 1, things get REAL. In a rare on camera moment, Robert gets tripped up in this video while trying to solve the problem. (~6mins in). After much thought, it was decided to leave that in. The goal is to model to students what it looks ...

From yaymath

In the sequel to part 1, things get REAL. In a rare on camera moment, Robert gets tripped up in this video while trying to solve the problem. (~6mins in). After much thought, it was decided to leave that in. The goal is to model to students what it looks ...

From yaymath

And now... let's create the rule that describes a sequence! (crickets.) It doesn't have to be that way, because listing out terms based on a rule can be decoded in a way that makes total sense. The key to this whole maze is understanding in real terms wha...

From yaymath

And now... let's create the rule that describes a sequence! (crickets.) It doesn't have to be that way, because listing out terms based on a rule can be decoded in a way that makes total sense. The key to this whole maze is understanding in real terms wha...

From yaymath

What? Pascal get's his own triangle? That's not fair, what if I wanted a rhombus? I'd call it "Robert's Rhombus." Until that day, we'll use Pascal's Triangle for binomial expansions. Fear not, we'll define "binomial" and how to do all that stuff well.
Mo...

From yaymath

What? Pascal get's his own triangle? That's not fair, what if I wanted a rhombus? I'd call it "Robert's Rhombus." Until that day, we'll use Pascal's Triangle for binomial expansions. Fear not, we'll define "binomial" and how to do all that stuff well.
Mo...

From yaymath

An infinite geometric series? Like, will I be doing this for the rest of my life? Hardly. What's interesting is that even though a sequence of numbers can continue to infinity, you can STILL add up all those numbers. Whoa. We continue the exploration into...

From yaymath

An infinite geometric series? Like, will I be doing this for the rest of my life? Hardly. What's interesting is that even though a sequence of numbers can continue to infinity, you can STILL add up all those numbers. Whoa. We continue the exploration into...

From yaymath

It's not a series on Netflix or NBC... it's a Geometric Series. Just as entertaining though, once you "get it." A Geometric Series is basically when you add up all the terms in a geometric sequence. And what's a geometric sequence?... See, the series prev...

From yaymath

It's not a series on Netflix or NBC... it's a Geometric Series. Just as entertaining though, once you "get it." A Geometric Series is basically when you add up all the terms in a geometric sequence. And what's a geometric sequence?... See, the series prev...

From yaymath

The Mathema-GYPTIAN rules. Well, not Egypt like a Pharaoh would. But math. Same thing? In this instant-vintage clip from the Yay Math vault, as a class we cover some in-depth examples of hyperbolas. Some would say that the hyperbola is the most complex of...

From yaymath

#tbt, deep from the #yaymath vault, bringing back the Mathema-GYPTIAN, to practice hyperbolas. #math #algebra...

From yaymath

The Mathema-GYPTIAN rules. Well, not Egypt like a Pharaoh would. But math. Same thing? In this instant-vintage clip from the Yay Math vault, as a class we cover some in-depth examples of hyperbolas. Some would say that the hyperbola is the most complex of...

From yaymath

What up, fam? Yay Math In Studio here, covering what first appears to be elusive, but isn't all that bad: Solving Linear-Nonlinear systems of equations. That is, suppose you have any of the conic sections, such as a parabola, circle, ellipse, or hyperbola...

From yaymath

What up, fam? Yay Math In Studio here, covering what first appears to be elusive, but isn't all that bad: Solving Linear-Nonlinear systems of equations. That is, suppose you have any of the conic sections, such as a parabola, circle, ellipse, or hyperbola...

From yaymath

Yay Math In Studio dives into figuring out which of the conic sections we're even looking at. The books will often say, "Identify which conic section it is, then write it in standard form." Well we can't do standard form until we know we're looking at a p...

From yaymath

Yay Math In Studio dives into figuring out which of the conic sections we're even looking at. The books will often say, "Identify which conic section it is, then write it in standard form." Well we can't do standard form until we know we're looking at a p...

From yaymath

Yay Math is back in the classroom for a video from the vault, yay math! Here, the Mathema-GYPTIAN builds pyramids of deeper understanding for the ellipse, one of the major conic sections. In this one example, we're given the major axis and minor axis leng...

From yaymath

#tbt Straight from the Yay Math vault, the Mathema-GYPTIAN is BACK, building pyramids of knowledge. #math...

From yaymath

Yay Math is back in the classroom for a video from the vault, yay math! Here, the Mathema-GYPTIAN builds pyramids of deeper understanding for the ellipse, one of the major conic sections. In this one example, we're given the major axis and minor axis leng...

From yaymath

... these are a few of my favorite things...
In this second full chapter review installment, we confront the big problems: the exponential function, ln, base e, and... uh oh... half-life word problems involving exponential growth and decay. Yay Math? No ...

From yaymath

... these are a few of my favorite things...
In this second full chapter review installment, we confront the big problems: the exponential function, ln, base e, and... uh oh... half-life word problems involving exponential growth and decay. Yay Math? No ...

From yaymath

Yay Math In Studio is back with a short and sweet foray into multiplying and dividing rational expressions. Do we need a common denominator here? Nope! That's only for adding and subtracting these rational friends. In this case, we're simply factoring so ...

From yaymath

Yay Math In Studio is back with a short and sweet foray into multiplying and dividing rational expressions. Do we need a common denominator here? Nope! That's only for adding and subtracting these rational friends. In this case, we're simply factoring so ...

From yaymath