Mathispower4u
Negative Exponents - Fractions with Powers Raised to Powers (Example)
Get a little practice. The video contains three examples of simplifying fractions involving negative exponents. Pupils get an opportunity to refresh their knowledge of exponent properties as they watch the presenter use different methods...
Mathispower4u
Evaluate an Expression with a Negative Exponent
The same rules apply. While watching the video, learners realize that the same rules apply to evaluate an expression with negative exponents as does simplifying an expression. The presentation shows a set of steps to evaluate a monomial...
Mathispower4u
Simplify an Expression with a Negative Exponent
Recognize the base. Part of a larger Algebra I series, the short video highlights the importance of recognizing the base to simplify expressions with exponents. In doing so, pupils notice the basic property that uses negative exponents.
Mathispower4u
Simplify a Fraction Raised to a Negative Power
Flip the fraction and continue. Given a fraction raised to a negative power, the narrator shows pupils two methods of simplifying the expression. Using different properties of negative exponents, the he demonstrates that either method...
Mathispower4u
Simplify a Quotient of Expressions with Neg Exponents (Adv -2 Methods)
Even with complex quotients, there is still more than one way to simplify an expression. The narrator of a short shows two methods of simplification when dealing with expressions with negative exponents. One method follows the more...
Mathispower4u
Simplify a Quotient of Expressions with Neg Exponents (2 Methods)
Is this method better, or this one? Given a quotient of expressions that involve negative exponents, the narrator of a short video works through two methods of simplification. The first method relies on positive exponents, while the...
Mathispower4u
Simplify a Product of Expressions with Neg Exponents (2 Methods)
Which method works best for you? Using a product, an informative video shows two methods to simplify the resulting expression. One method starts by rewriting the expression with only positive exponents. The other method uses the...
Mathispower4u
Simplify Basic Expressions with Negative Exponents
Identifying the base is extremely important. Using five problems with negative exponents, the narrator demonstrates that knowing the base is important in simplifying algebraic expressions. The different problems use the same numbers but...
Mathispower4u
Negative Exponents
Extend exponent properties beyond zero. After a quick review of the properties of exponents as they relate to negative exponents, the narrator works several examples for viewers. The examples start with simple, requiring only one...
Mathispower4u
Divide a Polynomial by a Monomial (Example)
What works for a binomial also works for a trinomial. The short video shows how to divide a polynomial by a monomial by breaking up the polynomial into its individual terms. Examples consist of a binomial and a trinomial divided by a...
Mathispower4u
Divide a Binomial by a Monomial (Example)
Make it easier by breaking it into pieces. The short video shows one example of dividing a binomial by a monomial. Pupils see that all polynomial division problems do not necessarily end up even and how to write the quotient.
Mathispower4u
Dividing Polynomials by Monomials
Split the polynomial into terms. The video shows how to divide a polynomial by a monomial. By splitting the polynomial into its terms, the problem then becomes dividing several monomials by a monomial. Class members become familiar with...
Howard Hughes Medical Institute
Chargaff's Ratio
How do we know the structure of DNA? Learn about Chargaff's rule and how scientists first discovered the structure of DNA. Using an informative video, young scientists identify how the arrangement of complementary nitrogen bases affects...
Mathispower4u
Negative Exponent: Why Is a^(-1)=1/a?
Follow a pattern to develop an explanation. An engaging video uses the pattern of positive integer exponents to develop an explanation of the rule for negative powers. Using powers of three, each lower power is the previous one divided...
SciShow
The Hunt for the First Neutrinos in the Universe
How far back in time can scientists see? Currently, the earliest photo of the universe is the cosmic microwave background, but math models prove the universe existed long before that time. An installment from the SciShow Space series...
American Chemical Society
Why Don’t Antarctic Fish Freeze to Death?
Some fish not only survive but thrive in Antarctic waters. Learn their secret in a lesson in an informative video about the freezing point of the salty sea water as well as the antifreeze proteins in the species' circulatory system.
Be Smart
Which Life Form Really Dominates Earth?
Humans only make up 0.01 percent of all life forms on Earth. We sure know how to make an impact though! An episode of the It's Okay to be Smart series examines the proportion of different species that inhabit Earth. The...
Be Smart
It's Okay to Fart (The Science of Flatulence)
Like it or not, passing gas is part of life ... almost all life! Flatulence has many different purposes in different species including communication, defense, and buoyancy. Pupils learn where farts come from and what contributes to their...
Be Smart
The Surprising Reason We Eat Spicy Food
Is there a connection between climate and how people cook? Interestingly enough, cultures that live closer to the equator cook with many more spices than those farther away. Learn the scientific explanation to this phenomenon in an...
Be Smart
Why Do We Cry Sad Tears?
Although some may be crocodile tears, crying is a distinct honor humans hold. Scholars learn the biological reason behind the emotional crying in a video lesson. The lesson instructor explores the anatomical and psychological connections...
Be Smart
3 Incredible Examples of Evolution Hidden in Your Body
Human traits trace back to simpler species—such as chickens, for example. Using the human genomes, scientists connect these traits to their ancestral origins. A video presentation highlights the structure of human DNA and makes a...
Be Smart
Why Do Disney Princesses All Look like Babies?
Could Disney be tricking people into caring about their characters? It seems the design of characters in recent years triggers our nurturing instincts. A video explains the science behind these instinctual habits—and why viewers are...
Be Smart
How Some Words Get Forgetted
There's nothing regular about them—irregular verbs turn out to be the most common verbs in the English language. Through an analysis of data, learners discover that Zipf's Law describes the patterns of word usage.
Be Smart
How Habits Change Your Brain
Have you ever driven home and weren't quite sure how you got there? If it's a path you take regularly, it's easy to recreate the habit without much thought. Learners explore the concept with a focus on the neurological pathways that make...