3Blue1Brown
Why do colliding blocks compute pi?
A solution to the puzzle involving two blocks, sliding fricionlessly, where the number of collisions mysteriously computes pi
3Blue1Brown
So why do colliding blocks compute pi? Colliding Blocks - Part 2 of 3
A solution to the puzzle involving two blocks, sliding fricionlessly, where the number of collisions mysteriously computes pi
3Blue1Brown
So why do colliding blocks compute pi?
A solution to the puzzle involving two blocks, sliding fricionlessly, where the number of collisions mysteriously computes pi
TED-Ed
TED-Ed: The uncertain location of electrons - George Zaidan and Charles Morton
The tiny atoms that make up our world are made up of even tinier protons, neutrons and electrons. Though the number of protons determines an atom's identity, it's the electrons -- specifically, their exact location outside the nucleus --...
3Blue1Brown
Tattoos on Math
After a friend of mine got a tattoo with a representation of the cosecant function, it got me thinking about how there's another sense in which this function is a tattoo on math, so to speak.
SciShow
Why Can't I Get Rid of This Cowlick?
You or someone you know may have struggled to get a cowlick to just stay down already, but you can take solace in the fact that these inconvenient hair tufts have a lot to teach us about the world around us.
PBS
Can a Circle Be a Straight Line?
On this week's episode of Spacetime, Gabe talks about what it actually means for a line to be straight so we can better understand what we mean by the idea of "curved Spacetime". This is Part One of our series on General relativity, so...
Bozeman Science
Position vs. Time Graph - Part 2
Mr. Andersen shows you how to read a position vs. time graph to determine the velocity of an object. Objects that are accelerating are covered in this podcast. He also introduces the tangent line (or the magic pen).
SciShow
Why Crocodiles Have an Extra Hole in their Heart
Crocodiles have four-chambered hearts, just like we do! But, while our hearts do just fine with four valves, they have a slightly different approach…
Bozeman Science
Position vs. Time Graph - Part 1
Mr. Andersen shows you how to interpret a position vs. time graph for an object with constant velocity. The slope of the line is used to find the velocity. A phet simulation is also included.
3Blue1Brown
Tattoos on Math
After a friend of mine got a tattoo with a representation of the cosecant function, it got me thinking about how there's another sense in which this function is a tattoo on math, so to speak.
Curated Video
Identifying which circle theorem to use
Pupil outcome: I can analyse a circle problem and identify and use an appropriate circle theorem to solve it. Key learning points: - There are many circle theorems so it is important to be clear about each one - Extra lines can be added...
Curated Video
Improving the estimate of the gradient of a curve
Pupil outcome: I can improve the estimate of the gradient by considering the gradient of the tangent at a fixed point. Key learning points: - Since the gradient is improved by moving the points closer together, you could consider a...
Curated Video
The alternate segment theorem
Pupil outcome: I can derive and use the theorem: the alternate segment theorem. Key learning points: - A theorem is a statement that can be demonstrated to be true by accepted mathematical operations and arguments - Theorems can be...
Curated Video
The tangents from an external point are equal in length
Pupil outcome: I can derive and use the theorem: the tangents from an external point are equal in length. Key learning points: - A theorem is a statement that can be demonstrated to be true by accepted mathematical operations and...
Curated Video
Finding the equation of the tangent to a circle
Pupil outcome: I can find the equation of the tangent to a circle at any given point. Key learning points: - Using the gradient of the radius through a given point, you can find the equation of the tangent at this same point. - You have...
Curated Video
The tangent at any point on a circle is perpendicular to the radius at that point
Pupil outcome: I can derive and use the theorem: the tangent at any point on a circle is perpendicular to the radius at that point. Key learning points: - A theorem is a statement that can be demonstrated to be true by accepted...
Curated Video
Problem solving with circle theorems
Pupil outcome: I can use my knowledge of circle theorems to solve problems. Key learning points: - Circle theorems can be used in situations involving circles - It is not always obvious that a circle theorem can be used - Sometimes you...
Curated Video
Advanced problem solving with real-life graphs
Pupil outcome: I can use my knowledge of interpreting real-life graphs to solve problems. Key learning points: - Different speed/time graphs can be interpreted and compared. - The area under the graph can also be interpreted in context....
Curated Video
Factoring Special Products 2
Find all six trig ratios given a point on the terminal side of theta. In this video we work this common type of problem. We use the Pythagorean Theorem to find "r" (hypotenuse), and then use the given "x" (adjacent) and "y" (opposite) to...
Curated Video
Vertex Form Word Problems (Quadratics)
Find all six trig ratios given a point on the terminal side of theta. In this video we work this common type of problem. We use the Pythagorean Theorem to find "r" (hypotenuse), and then use the given "x" (adjacent) and "y" (opposite) to...
Curated Video
Practice Problems - Arc and Angle Relationships
Find all six trig ratios given a point on the terminal side of theta. In this video we work this common type of problem. We use the Pythagorean Theorem to find "r" (hypotenuse), and then use the given "x" (adjacent) and "y" (opposite) to...
Curated Video
Intro to Logs and Solving Log Equations
Find all six trig ratios given a point on the terminal side of theta. In this video we work this common type of problem. We use the Pythagorean Theorem to find "r" (hypotenuse), and then use the given "x" (adjacent) and "y" (opposite) to...
Curated Video
Matrix Multiplication (same dimension)
Find all six trig ratios given a point on the terminal side of theta. In this video we work this common type of problem. We use the Pythagorean Theorem to find "r" (hypotenuse), and then use the given "x" (adjacent) and "y" (opposite) to...