statisticsfun
Deriving the Sample Size Equation
Where do all of these equations come from? A statistics video explains how to find the sample size equation based on the formula for the confidence interval.
Math Meeting
Adding and Subtracting - Negative Numbers
Here is a video that adds visual context and a steady stream of step-by-step instructions for adding and subtracting negative integers, with the help of a number line.
Learn English with Rebecca
Tenses Overview - Present, Past, Future, Simple, Continuous, Progressive, Perfect!
Clarify the difference between different verb tenses with a short, informative language arts video. The instructor guides learners through past, present, and future simple tenses; as well as the perfect, progressive, and perfect...
Learning Upgrade
Characters and Setting Song
Put a reggae spin on literature instruction with a music video detailing what characters are, and what a setting is. In addition to the concept's definitions, the video displays an excerpt that showcases how to identify the characters...
Learning Upgrade
Short Vowel Song
Get your groove on with a music video showcasing short vowels! Throughout the song, each vowel's letter name, sound, and example word is identified with a cool disco beat.
Learning Upgrade
Long Vowels Song
Throw on a leather jacket and saddle shoes, because it's time to sing about long vowels! Listen while a doo-wop group explains how long vowels are made and shares words that have long vowel sounds.
Krista King Math
Calculus - Functions
An understanding of the basics of a function is key to success in upper-level math courses! A video describes in detail the important aspects of functions including domain, range, combinations, compositions, and vertical line test.
Krista King Math
Which Functions Pass the Vertical Line Test?!!
What is a function? Teachers have been asking pupils this question from the time they started their algebra careers. A helpful video walks through the process of using the vertical line test to determine a function while...
Krista King Math
How to find Domain and Range for a function
Calculating domain and range of a function is a challenge! A helpful video shows learners the steps to finding the domain and estimating the range algebraically. Scholars understand the relationship of the domain and range.
Krista King Math
Finding Values and Domain and Range from a Graph
The abstract notion of domain and range can be troublesome. A math lesson explains the concept of determining domain and range from a graph. The instructor makes clear connections between the graph and the numeric values. There are...
Calculus Expert
Determining if a Function is Even, Odd, or Neither
Numbers are even and odd, but did you know functions can be too? The lesson shows the process of determining an even or odd function algebraically. It uses polynomial examples and shows an example of each type.
Calculus Expert
How to Classify Functions
By the time pupils get to upper-level math courses, they have experience with many different types of functions. How do they keep them all straight? The lesson classifies functions into their types and breaks down those types into...
Calculus Expert
Equation Modeling
Do your learners tend to skip the word problems? Use a video to increase their confidence. It walks them through a volume/cost problem and writing the model in terms of just one variable.
Calculus Expert
Modeling the Equation of a Piecewise Defined Function from Its Graph
Build a function from pieces of other functions. Learners observe how to write a piecewise function from its graph with an instructive video. The video uses all notation and vocabulary related to piecewise functions, as well as...
Calculus Expert
Sketching a Graph from a Story Problem
One of the beauties of mathematics is the ability to take words and turn them into symbols. The lesson uses a graph to tell a story, and translates a description of water changing temperatures into a graph. The instructor then reviews...
Calculus Expert
Equation of the Line in Slope-Intercept Form
Do your learners prefer slope-intercept form when writing linear equations? The previous video in a series completes the same problems using point-slope form. This time, the instructor completes the problems using slope-intercept...