Instructional Video5:02
Curated Video

Snow Mountain (Solve multistep word problems involving addition and subtraction of fractions with equal denominators using the number line)

K - 12th
A ski mountain had the first snowstorm of the season. Two days ago, the total snowfall was one and four fifths feet and yesterday an additional two and two fifths feet fell. Today it was sunny and three fifths of a foot of snow melted....
Instructional Video4:10
Curated Video

Colored Tiles (Solve single-step word problems involving addition and subtraction of fractions with equal denominators using visual models)

K - 12th
A bathroom floor in a house is made up of 12 colored tiles of equal size. 5 of the tiles are red and 3 are green, and the rest are yellow. What is the fraction that represents the red tiles out of the total number of tiles? And what is...
Instructional Video5:53
Curated Video

Solving Word Problems Involving Addition of Fractions with Unlike Denominators

K - 5th
In this video, the teacher explains how to solve word problems involving addition of fractions with unlike denominators. They use models and multiplication to help visualize and find common denominators.
Instructional Video2:35
NASA

NASA | GLASTcast | Episode 1: What is GLAST?

3rd - 11th
NASA's GLAST mission is an astrophysics and particle physics partnership, developed in collaboration with the U.S. Department of Energy, along with important contributions from academic institutions and partners in France, Germany,...
Instructional Video6:32
Brian McLogan

Write the Piecewise Function

12th - Higher Ed
Write the Piecewise Function
Instructional Video4:03
Curated Video

Adding Fractions With Equal Denominators Using Area Models

3rd - 5th
Add fractions with equal denominators using area models.
Instructional Video3:51
Curated Video

Writing Wholes as Fractions

K - 12th
Understand that one whole is a fraction whose numerator and denominator are equal.
Instructional Video2:28
Curated Video

Finding a Whole Using the Percent Proportion

3rd - 5th
Use a percent proportion to find the whole.
Instructional Video3:23
Curated Video

Dividing a Unit Fraction by a Whole Number Using the Number Line

3rd - 5th
Dividing a unit fraction by a whole number using the number line.
Instructional Video6:42
Curated Video

Subtraction of Fractions: Creating Like Denominators

K - 5th
In this video, the teacher explains how to solve word problems involving subtraction of fractions with unlike denominators. The teacher uses models to visualize the fractions and demonstrates the process of creating like denominators by...
Instructional Video5:06
Curated Video

Checking Division with Whole Numbers and Fractions Using Inverse Relationship

K - 5th
In this video, learn how to check division answers involving whole numbers and fractions using the inverse relationship between multiplication and division. The teacher provides examples and demonstrates the process of using...
Instructional Video4:59
Curated Video

Comparing and Ordering Decimal Numbers to the Thousandths Place

K - 5th
Learn how to compare and order decimal numbers to the thousandths place by comparing digits in the same decimal place value from left to right. Explore the concept using the analogy of dividing a whole dollar into tens, hundreds, and...
Podcast6:53
Tumble Science Podcast for Kids

The Center of the Earth

Pre-K - Higher Ed
There is no natural hole to the center of the planet Earth, so seeing what is in the center is difficult. Scientists haven’t ever drilled deeper than 2,000 feet into the Earth’s crust. Seismographs are used to measure earthquakes, which...
Instructional Video0:46
Brian McLogan

How to determine the VA of a function

12th - Higher Ed
👉 Learn how to find the vertical/horizontal asymptotes of a function. An asymptote is a line that the graph of a function approaches but never touches. The vertical asymptote is a vertical line that the graph of a function approaches but...
Instructional Video3:45
Brian McLogan

Find the oblique asymptote and x and y intercepts of rational function

12th - Higher Ed
👉 Learn how to find the slant/oblique asymptotes of a function. A slant (oblique) asymptote usually occurs when the degree of the polynomial in the numerator is higher than the degree of the polynomial in the denominator. To find the...
Instructional Video1:38
Brian McLogan

Learn to identify the VA and HA from a rational function

12th - Higher Ed
👉 Learn how to find the vertical/horizontal asymptotes of a function. An asymptote is a line that the graph of a function approaches but never touches. The vertical asymptote is a vertical line that the graph of a function approaches but...
Instructional Video2:42
Brian McLogan

Evaluate the limit to infinity and negative infinity from a graph

12th - Higher Ed
Evaluate the limit to infinity and negative infinity from a graph
Instructional Video4:52
Brian McLogan

Identify Asymptotes and intercepts of Rational Function

12th - Higher Ed
👉 Learn how to find the slant/oblique asymptotes of a function. A slant (oblique) asymptote usually occurs when the degree of the polynomial in the numerator is higher than the degree of the polynomial in the denominator. To find the...
Instructional Video3:39
Curated Video

Percent Proportion

3rd - 5th
Use a percent proportion to find part of a whole.
Instructional Video3:54
Curated Video

Multiplying Decimals Using Visual Models

3rd - 5th
Multiply decimals to tenths using a 10 × 10 array.
Instructional Video4:22
Curated Video

Converting Improper Fractions to Mixed Numbers

3rd - 5th
Convert improper fractions into mixed numbers.
Instructional Video5:17
Curated Video

Yummy Pie (Representing the product of a mixed number and a fraction using area models)

3rd - 5th
A baker sells slices of pie at her bakery. She started the day with 4 and one half pies, and at the end of the day, four fifths of the pies were sold. How much pie did the baker sell?
Instructional Video6:00
Curated Video

Trip to the Amusement Park (Use the number lines to solve word problems involving subtraction of fractions with like and unlike denominators)

3rd - 5th
Billy and Peter are going to the amusement park with their families. Each family is taking their own car for the ride. Once everyone reached the park, Billy’s dad said: “we drove five and one eighth miles” and Peter’s dad said: “my car’s...
Instructional Video3:01
Curated Video

Subtracting Mixed Numbers (Example)

K - 12th
Subtract mixed numbers with regrouping.