KnowMo
Introduction to Rotations in Mathematics
The video explains the concept of rotation as a transformation of shapes, where a central point and direction are necessary to perform the rotation. The presenter uses tracing paper and a grid to demonstrate how a shape can be rotated by...
TED Talks
Jan Chipchase: The anthropology of mobile phones
Nokia researcher Jan Chipchase's investigation into the ways we interact with technology has led him from the villages of Uganda to the insides of our pockets. He's made some unexpected discoveries along the way.
ProTeachersVideo
Jonny Heeley's Masterclass: Averages
Award winning maths teacher Jonny Heeley takes on the challenge of showing how averages work with a group of enthusiastic 13 years old students. This maths masterclass explores practical ways of teaching averages in a series of practical...
Brian McLogan
Graphing a quadratic function in standard form
👉 Learn how to graph quadratics in standard form. A quadratic equation is an equation whose highest exponent in the variable(s) is 2. To graph a quadratic equation, we make use of a table of values and the fact that the graph of a...
Brian McLogan
Graphing a quadratic function in standard form
👉 Learn how to graph quadratics in standard form. A quadratic equation is an equation whose highest exponent in the variable(s) is 2. To graph a quadratic equation, we make use of a table of values and the fact that the graph of a...
Brian McLogan
Graphing a quadratic function in standard form
👉 Learn how to graph quadratics in standard form. A quadratic equation is an equation whose highest exponent in the variable(s) is 2. To graph a quadratic equation, we make use of a table of values and the fact that the graph of a...
Brian McLogan
Graphing a quadratic function in standard form
👉 Learn how to graph quadratics in standard form. A quadratic equation is an equation whose highest exponent in the variable(s) is 2. To graph a quadratic equation, we make use of a table of values and the fact that the graph of a...
Brian McLogan
What are compound inequalities
👉 Learn all about solving and graphing compound inequalities. An inequality is a statement in which one value is not equal to the other value. A compound inequality is a type of inequality comprising of more than one inequalities. To...
Brian McLogan
Graphing a quadratic function in standard form
👉 Learn how to graph quadratics in standard form. A quadratic equation is an equation whose highest exponent in the variable(s) is 2. To graph a quadratic equation, we make use of a table of values and the fact that the graph of a...
Brian McLogan
Graphing a quadratic function in standard form
👉 Learn how to graph quadratics in standard form. A quadratic equation is an equation whose highest exponent in the variable(s) is 2. To graph a quadratic equation, we make use of a table of values and the fact that the graph of a...
Brainwaves Video Anthology
Dr. M. Starita Boyce Ansari - The New 3Rs
In 2021, The Lilly Family School of Philanthropy IUPUI bestowed its highest global honor to Dr. M. Starita Boyce-Ansari for her years of service to the Black community. December 2020, Dr. M. Starita Boyce-Ansari founded The New 3Rs, Inc....
Brian McLogan
How to find the equation of an hyperbola
Learn how to write the equation of hyperbolas given the characteristics of the hyperbolas. The standard form of the equation of a hyperbola is of the form: (x - h)^2 / a^2 - (y - k)^2 / b^2 = 1 for horizontal hyperbola or (y - k)^2 / a^2...
Brian McLogan
How to write the standard form of a hyperbola given the vertices and through a point
Learn how to write the equation of hyperbolas given the characteristics of the hyperbolas. The standard form of the equation of a hyperbola is of the form: (x - h)^2 / a^2 - (y - k)^2 / b^2 = 1 for horizontal hyperbola or (y - k)^2 / a^2...
Brian McLogan
When given the asymptotes and vertices, find the equation of the hyperbola
Learn how to write the equation of hyperbolas given the characteristics of the hyperbolas. The standard form of the equation of a hyperbola is of the form: (x - h)^2 / a^2 - (y - k)^2 / b^2 = 1 for horizontal hyperbola or (y - k)^2 / a^2...
Curated Video
Specular and Diffuse Reflection: Understanding Reflection of Light
This is a lecture video explaining the concepts of specular and diffuse reflection. The video discusses how light rays follow the law of reflection, where the angle of incidence is always equal to the angle of reflection. It gives...
Brian McLogan
Given a Irrational Factor | Find All the Zeros of the Polynomials
👉 Learn how to find all the zeros of a polynomial given one irrational zero. A polynomial is an expression of the form ax^n + bx^(n-1) + . . . + k, where a, b, and k are constants and the exponents are positive integers. The zeros of a...
Brian McLogan
Solving by completing the square hard with fractions
👉 Learn how to solve quadratic equations by completing the square. When solving a quadratic equation by completing the square, we first take the constant term to the other side of the equation and create a perfect square trinomial with...
Brian McLogan
Writing the standard form of a hyperbola given the foci and asymptotes
Learn how to write the equation of hyperbolas given the characteristics of the hyperbolas. The standard form of the equation of a hyperbola is of the form: (x - h)^2 / a^2 - (y - k)^2 / b^2 = 1 for horizontal hyperbola or (y - k)^2 / a^2...
Brian McLogan
What do I need to know for solving by completing the square
👉 Learn how to solve quadratic equations by completing the square. When solving a quadratic equation by completing the square, we first take the constant term to the other side of the equation and create a perfect square trinomial with...
Brian McLogan
Learn how to graph a system of linear inequalities in standard form
👉 Learn how to graph a system of inequalities. A system of inequalities is a set of inequalities which are collectively satisfied by a certain range of values for the variables. To graph a system of inequalities, each inequality making...
Brainwaves Video Anthology
Kevin Kumashiro - Anti-Asian Hate
In this video, Dr. Kevin Kumashiro, interim dean of the School of Education at Hofstra University, addresses the issue of anti-Asian hate in the United States, which has intensified amidst recent events. He identifies three key factors...
Brian McLogan
Learn how to verify an identity squaring a binomial
👉 Learn how to verify trigonometric identities by expanding the trigonometric expressions. When the given trigonometric expressions involve multiplications with more than one term in parenthesis, we start by expanding the expressions...
Institute for New Economic Thinking
The Death of ‘Homo Economicus’
Good incentives are no substitute for good citizens. Human beings, notes Sam Bowles, a Research Professor at the Santa Fe Institute, are complex, psychological beings given to all sorts of motivations well beyond naked self-interest....
World Science Festival
What is The Flame Challenge?
Since he was 11 years old, Alan Alda has asked questions about flames. But for a long time, the answers eluded him. As he learned at a young age, procuring information from the notoriously insular scientific community is often difficult....