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Simply Irrefutable
Physicist Paul Steinhardt, Princeton University, relates how, once it became clear that the BICEP 2 experiment was flawed, many cosmologists were immediately able to reinterpret the new, opposite results as still supporting their theory.
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Hunting Exoplanets
Astrophysicist Scott Tremaine, Institute for Advanced Study, describes the issues associated with the search for exoplanets, highlighting how we actually had the technology to find them years ago but were limited by our own conceptions...
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Help Needed
Princeton University cosmologist Paul Steinhardt believes that the current dead-end of the theory of cosmic inflation represents great opportunities for young researchers.
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Introduction to Fractions
The video “Introduction to Fractions” describes numerators and denominators and uses examples to illustrate the concept of fractions.
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Multiplying Whole Numbers By Fractions Using Models
Learn how to multiply whole numbers by fractions using models in this fun and educational video from Doodles and Digits. Our visual approach makes math easy and enjoyable for everyone! Using models, we'll break down the process and show...
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Multiplying a Whole Number By A Fraction - Number Line
Welcome to Doodles and Digits! In this video, we'll guide you through multiplying a whole number by a fraction using a number line. This step-by-step tutorial is perfect for anyone looking to improve their math skills and is especially...
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Multiplying a Fraction By a Whole Number: A Step-by-Step Guide for 3rd, 4th, and 5th Grade
Welcome to Doodles and Digits, the perfect place to learn math in a fun and interactive way! In this video, we'll show 3rd, 4th, and 5th-grade students how to multiply a fraction by a whole number using a step-by-step approach. We will...
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Percent Decrease: Decimal to Percent
Percent Decrease: Decimal to Percent explains how to solve percent decrease problems by changing a decimal to a percent.
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Percent Decrease: Fraction to Percent
Percent Decrease: Fraction to Percent shows how to solve percent decrease problems by changing a fraction to a percent.
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Percent Increase: Decimal to Percent
Percent Increase: Decimal to Percent demonstrates solving percent increase problems by changing a decimal to a percent.
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Review for You: Fractions
A video entitled “Review for You: Fractions” which reviews fraction-related vocabulary, parts of a whole, parts of a set, common fractions, and comparing fractions.
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Fraction Review
“Fraction Review” works with fraction strips and reviews factors, multiples, equivalent fractions, ordering fractions, mixed numbers, and improper fractions.
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Multiplying Rational Numbers
“Multiplying Rational Numbers” will review the rules and procedures for multiplying rational numbers.
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Add and Subtract Fractions
A video entitled "Add and Subtract Fractions" which explores multiple methods for adding and subtracting fractions that have the same denominator.
Why U
Algebra 91 - Rational Functions and Vertical Asymptotes
A rational function is any function that can be written as a fraction whose numerator and denominator are polynomials. Rational functions include a broad range of possibilities. For example, since a polynomial can be a constant, a...
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Mixed Numbers: Using Food (fractions unit)
What are mixed numbers? How to find mixed numbers on a number line.
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Subtracting Fractions With Like Denominators Boot Camp
Learn how to subtract fractions with like denominators with a Boot Camp theme.
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Fractions of a Set: March Madness Basketball
Join Coach Taylor as she coaches you through fractions of a set. There's a basketball fraction challenge at the end of the lesson.
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Learning Fractions at Taylor's Pizzeria
Join Mrs. Taylor at Taylor's Pizzeria to learn about fractions (circles, squares, and rectangles). Students can then create a pizza with Mrs. Taylor on their own using construction paper and markers.
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Adding Fractions With Like Denominators
Welcome to Judge Taylor's Courtroom where the jury will help determine if the sum of two fractions with like denominators is a proper or improper fraction. The penalty for being an improper fraction is to become a mixed number.
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Comparing Fractions On a Boat
Students learn or review how to compare fractions using different strategies. This math adventure takes place on a boat with a shark and fish. The boat background comes from PlaySpark.
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Real-World Same Denominator
A video entitled “Real-World Same Denominator” uses real-world situations to compare fractions that have the same denominators.