Welch Labs
Imaginary Numbers Are Real (Part 5: Numbers are Two Dimensional)
If the square root of negative one exists, where is it on the number line? A math video presents a geometric representation of complex numbers and the complex plane, and then compares it to the geometric representation of real...
Northeast Arkansas Education Cooperative
Multiplying Binomials Using the Distributive Property
Where many multiplying binomial lessons introduce the tool of FOIL and move on, this video presentation really delves into the how's and why's of the distributive property. Careful treatment of distribution and explicitly written out...
Northeast Arkansas Education Cooperative
Multiplying Polynomials
Without ever relying on the FOIL trick, this presentation carefully walks young algebrists through multiplying binomials by a monomial and by each other. Examples start easy, but move into complicated pairings of coefficients, positives...
Northeast Arkansas Education Cooperative
Polynomial Operations
This overview of polynomial operations does a solid job of summarizing how a mathematician attacks adding, subtracting, and multiplying polynomials. With particular emphasis on combining like terms and when exponents do and do not...
Northeast Arkansas Education Cooperative
Factoring Trinomials by Using the Punnett Square
Factoring is one of the first places in math that a young algebrist runs into multiple ways to work a problem. For the more concrete learner who needs a visual structure for problem solving, this presentation of factoring using a Punnett...
Educreations
Using the Zero Product Property to Solve Quadratic Functions
The last step of solving a quadratic factoring problem is often the stumbling block for algebra learners. Setting each factor equal to zero and solving the mini-equations isn't an intuitive process to learners new to the zero...
TED-Ed
The Law of Conservation of Mass
This short video simply explains the Conservation of Mass with graphics that show the atoms being conserved in pictures of balanced equations. The connection between mass and energy is explained and Einstein's energy equation is mentioned.
TED-Ed
Music and Math: The Genius of Beethoven
Math will resonate with your young artists and musicians when they learn that a mathematical formula describes a musical sound that is pleasing to our ears. Beethoven uses the certainty of mathematics to convey emotion and...
Scholastic
Study Jams! Divisibility Rules
Learning division is a challenge for many young mathematicians, but this presentation on divisibility rules can make it much easier. Seven different rules are clearly explained and modeled with the support of multiple examples. Consider...
Scholastic
Study Jams! Proportions
Join Zoe and Sam as they use proportions to budget money for their Green Earth Club. Watch as they set up and solve a series of proportions using cross multiplication and division. A great resource that brings together prior knowledge of...
Scholastic
Study Jams! Place Value
Looking at large numbers can intimidate many young mathematicians. Use Zoe's place value machine to help learners understand the meaning behind each digit in a whole number. After learning about the ones, tens, and hundreds places,...
Virtual Nerd
What is the Opposite, or Additive Inverse, of a Number?
Teach your class about the additive inverse! Using examples first and a definition second, this video explains what the additive inverse it and how to find the additive inverse of any given number or variable. A quick concept review for...
Virtual Nerd
How Do You Solve a Proportion?
Use the means extreme proportion property to cross multiply and solve for the unknown variable in this proportion problem. Then use the division property of equality to isolate that variable and get your solution.
Virtual Nerd
How Do You Plug Variables into an Algebraic Expression?
The instructor demonstrates how to plug-in given variables to rewrite an algebraic expression as a numerical expression. Follow the order of operation rules to simplify the numerical expression once you have plugged in those given values.
Virtual Nerd
How Do You Subtract a Negative Number from a Positive Number?
Subtracting an integer is as simple as adding the opposite value. Watch this video to see an example of how to change the signs and then add the two integers. Use this as a review after you have taught this valuable skill to your middle...
Virtual Nerd
How Do You Use a Proportion to Find a Part of a Whole?
There are two methods for finding the percentage of a number. One is to use an equation, and the other is to use a proportion. This tutorial demonstrates with clear examples how to implement the proportion method. Insert this video into...
Math Playground
Convert Fractions/Decimals to Percents
In this easy-to-understand video, an instructor shows how to convert fractions to decimals, decimals to percentages, and fractions to percentages. After watching this film, the conversion process should be easier for your learners to grasp.
Educreations
Dividing Using Friendly Numbers
Simplify division for young mathematicians by teaching them how to use friendly numbers when finding quotients. Three examples are presented in this instructional video that models the process of breaking large dividends into sums of...
Virtual Nerd
What is Absolute Value?
As long as you keep in mind that there is no such thing as negative distance, then you will know the meaning of absolute value. The teacher writes on a white board to explore integers on a number line, give a definition of absolute...
Virtual Nerd
How Do You Use a Proportion to Find What Percent a Part is of a Whole?
Percent, parts, whole, how do these pieces fit together to solve a percent problem? Follow along as the instructor shows how to set this up as a proportion problem in order to solve it.
University of New South Wales (Australia)
University of New South Wales: Prob Stats6: Binomial and Geometric Distributions
In this lecture for an introductory probability and statistics course, the instructor goes over binomial and geometric distributions, as well as sign tests. [52:21]
Khan Academy
Khan Academy: Statistics: Hypothesis Testing and P Values
Video gives example of hypothesis testing with an example related to medical testing. Includes setting up a null hypothesis and an alternative hypothesis. [11:26]
Khan Academy
Khan Academy: Fundamentals: Bayes' Theorem
In this Wireless Philosophy video, Ian Olasov (CUNY) introduces Bayes' Theorem of conditional probability and the related Base Rate Fallacy. [6:20]
