Why U
Pre Algebra 23 - Scientific Notation - v.2
Scientific notation allows us to more easily express very large or very small numbers encountered in engineering and science. Using exponents, we can convert standard decimal numbers into scientific notation and vice versa.
Why U
Algebra 93 - Rational Functions and Nonvertical Asymptotes
Although a rational function may have any number of vertical asymptotes or no vertical asymptotes, rational functions will always have exactly one non-vertical asymptote. Since a function's value is undefined at a vertical asymptote, its...
Why U
Algebra 89 - Multiplying Polynomial Functions
In the previous lecture we saw how polynomial functions could be added or subtracted, producing new polynomial functions with different characteristics. In this lecture we will see how to multiply polynomial functions and show how the...
Why U
Algebra 86 - Graphing Polynomial Functions - Part 1
Calculators and graphing utilities are available that are capable of creating accurate graphs of polynomial functions. However, it is often desirable to sketch a quick representation of a function's graph to get a general idea of its...
Curated Video
Simplify Expressions
The video “Simplify Expressions” introduces algebra tiles as a helpful tool for representing and simplifying algebraic expressions.
Curated Video
Domain and Range
“Domain and Range” explains when a relation is a function. The video also describes how to determine the domain and range of a given function.
Curated Video
Recognize that Absolute Value is Always Positive by Adding Two Negative Numbers
Recognize that Absolute Value is Always Positive by Adding Two Negative Numbers recognizes that the absolute value of a number is always positive by adding two negative numbers.
Curated Video
How to Subtract Using a Number Line
In this video, a teacher demonstrates how to subtract using a number line and helps students identify which number line represents a given expression. The teacher breaks down the steps and eliminates incorrect answer choices, making the...
Curated Video
Finding Distance on a Number Line
In this video, the teacher explains how to find the distance between two points on a number line using absolute value. The teacher walks through the steps of identifying the points, using absolute value to find the distance, and writing...
Curated Video
Mathematics: Finding Values on Opposite Sides of 0 on the Number Line
In this video, the teacher explains how to identify which pairs of numbers are on opposite sides of 0 on a number line. They walk through four pairs of values and show how to plot them on the number line to determine which pair is on...
Curated Video
Facts About Reflections and Translations
In this video, the teacher explains the concepts of reflections and translations using examples of Pentagon L and Triangle T on a coordinate plane. The viewer is presented with multiple choice questions to test their understanding of the...
Curated Video
This Is Me Part 1: Embracing Your Identity
In this episode of In Control, Jeff introduces the series "This Is Me," focusing on identity and self-acceptance. He explains the significance of forming one's identity during the teenage years and how it impacts self-concept and...
Curated Video
Built for It - Part 2: Shifting Focus - The Power of Positivity
Welcome back to our empowering series, "Built for It" - where we learn about overcoming adversity and becoming stronger. In this episode, we take a closer look at the role of positivity in dealing with tough times. Ever find yourself...
Curated Video
Mental Health Matters (8th Grade) Part 1: Recognizing Signs and Seeking Help
Host Kevin focuses on identifying signs of mental health issues and the importance of taking action to help those in need. Kevin explains the three types of signs to look out for: emotional signs, behavioral signs, and physical signs. He...
Curated Video
HOW to Plot the Solution on a Number Line
In this math video we will learn how to plot the solution on a number line to answer a standardized math test question. We will solve an equation by adding rational numbers. We will review the rule for adding number values with different...
Curated Video
Operations with Rational Numbers: Multiplying and Dividing
In this video, the teacher explains how to perform operations with rational numbers, specifically multiplication and division. The video includes step-by-step instructions and rules for handling different signs and dividing by a...
Science Buddies
How to Make an LED Temporary Tattoo – Cool Wearables
Make your own light-up LED temporary tattoo in this fun DIY activity! This is your chance to design and create your own wearable device. Written instructions and a materials list for this paper circuit project are available on the...
Science Buddies
🦄 DIY Light Up Unicorn Headband 🦄
Make your own light-up LED unicorn headband in this fun DIY activity! Written instructions and a materials list for this paper circuit project are available on the Science Buddies website:...
Science Buddies
🦄How to Build a Simple Unicorn Robot🦄
Build a unicorn robot that makes its own art! A kit with the electronic parts for this project is available here: https://www.homesciencetools.com/product/bristlebot-robots-kit/?aff=SB1. Written instructions to build an Art Bot are...
Flipping Physics
Equipotential Surfaces
The electric potential difference in a uniform electric field is derived and used to show lines of equal electric potential or equipotential lines. Equipotential lines and surfaces of point charges and dipoles are shown. The equation for...
Flipping Physics
Parallel Plates Electric Potential Difference using an Integral
Calculus is used to derive the equation for the electric potential difference between two parallel plates of equal but opposite charge. It’s a uniform electric field. The significance of the negative in the equation is explained.
Flipping Physics
Thin Ring Electric Field using Electric Potential
First we solve for the electric potential along the axis of a uniform thin ring of electric charge. Then we use that electric potential to solve for the electric field at the same location.
Flipping Physics
Speed of a Proton in a Uniform Electric Field
Conservation of energy is used to determine the final speed of a proton released at rest in a uniform electric field.