Virtual Nerd
What is an Ellipse?
This video answers the question, What is an ellipse? It gives a definition of an ellipse, shows the ellipses relation of a plane to a cone, and the names of different parts of the ellipse.
Virtual Nerd
How Do You Find Higher Powers of i?
What is i raised to the 45th power? This video shows you how to break up the problem into a number of i raised to 4th power, and calculate what power is left over to calculate.
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What's an Improper Fraction?
The instructor explains that an improper fraction is a fraction in which the numerator is greater than the denominator. Use this as an at-home review for learners who are struggling to grasp this concept.
Virtual Nerd
How Do You Use a Tree Diagram to Count the Number of Outcomes in a Sample Space?
Deciding what to wear can be difficult, but it helps if you know your options. Use a tree diagram to solve word problems like the one in this video! Class members can watch and learn how to find and count possible outcomes (or outfits)....
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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...
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How Was the Distance Formula Derived?
Are you working on the distance formula? Derive the distance formula and help your learners by showing them the logic behind the distance formula. This practical video should help conceptual understanding and is appropriate for in-class...
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What are Interior and Exterior Angles of a Polygon?
Break down interior and exterior angles with this video. Using a pentagon, a teacher demonstrates how to find the interior and exterior angles of a polygon. She goes on to explain a few of the properties of these angles, writing down all...
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How Do You Divide a Decimal by a Decimal?
Many learners would look at this decimal division problem and just skip it. Don't let them do that! Figure out how to help your learners master long division. The teacher helps make decimals and long division seem doable.
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What is Place Value for Whole Numbers?
Whole numbers are the natural numbers including zero. The instructor illustrates and explains place value. She draws a place value chart and then defines each term and what the numbers mean. She writes a number in standard form and then...
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What is a Prism?
I always thought a prism was a solid triangular shaped piece of glass that made rainbows when the light shined through it. Well, that is a prism, but that is only one example of a prism, as prisms are three-dimensional solids of a...
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How Do You Figure Out the Volume of a Solution Using Percents?
A word problem, chemistry, and percent? I know you want to throw your hands in the air and run away from this problem, but please don't. Pay close attention as the instructor helps you unpack this word problem to set up an equation that...
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How Do You Write a Whole Number Given in Words in Standard Form and in Expanded Form?
You are given a number that is written out in words and now you have to write it in numerical form, and you have to write it in expanded form. The teacher helps you identify the period values and the place values to write the words in...
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How Do You Multiply a Rational Expression by a Polynomial?
Multiply a rational expression and a polynomial. No problem, you can do it. Turn your polynomial into a fraction and multiply. You might need to factor your polynomials first to see if you can cancel out some terms, thereby reducing it...
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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.
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How Do You Simplify an Expression Using the Order of Operations?
Simplify an expression by following the order of operation. Some already know the acronym PEMDAS. But that often gets a little confusing. The teacher demonstrates three steps to simplifying an expression.
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How Do You Convert a Number in Exponential Form into Expanded Form?
A quick lesson on how to write an exponential expression in expanded form. All you have to do is write out the base number the identified number of times as represented by the power. This would be a great support to your lesson on...
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What are Quadrants in the Coordinate Plane?
The teacher diagrams a coordinate plane and identifies the four quadrants. He labels the quadrants with numbers. Then he illustrates a table to identify the positive or negative value of the x-coordinate and the y-coordinate and...
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How Do You Solve a Word Problem with an Equation Using Division?
Maria is 12 years old. How do you know that? Follow the teacher as she shows you how to set up and solve this word problem. Don't forget to check your answer.
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How Do You Use Unit Rates to Compare Rates?
Cupcakes, cupcakes, cupcakes! Where shall we buy some cupcakes? There are two stores selling cupcakes and we would like to know which one has the better deal. The instructor demonstrates how to find a unit rate for the cupcakes at each...
Virtual Nerd
How Do You Divide Fractions?
You want me to what? Divide fractions? Ok, breathe. Would it be better if you multiplied those fractions? Find out how to change a division of fractions into a multiplication of fractions.
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How Do You Solve a Two-Step Equation by Distributing a Fraction First?
Are you stumped by having a fraction in front of the parentheses in an equation you are trying to solve? Never fear. Watch as the instructor shows you how to work your way through this equation starting with the distributive property and...
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How Do You Solve a Word Problem Using Ratios?
The teacher demonstrates how to set up a word problem into a ratio of fractions. There are many ways to solve this equivalent ratios problem and the instructor chooses to find a multiplier to find the missing value.
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How Do You Use an Equation to Find a Part of a Whole?
Watch the instructor change a percent into a decimal and multiply it by the original number to determine the percent. One idea would be to embed this video in a PowerPoint presentation, or assign it as homework with your flipped...
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What is Place Value?
The teacher names and explains place value. She starts at the ones, and moving left of the decimal, goes to a million. Then moving to the right of the decimal she names and explains tenths to thousandths. This is a terrific video to use...