Instructional Video4:54
Curated Video

Classifying Quadrilaterals Based on Parallel Sides

K - 12th
Classifying quadrilaterals based on the number of parallel sides.
Instructional Video3:48
Curated Video

The Meat Shop (Solve single-step word problems involving addition and subtraction of fractions with equal denominators without a model (equations))

K - 12th
The meat shop sold one and two fourths pounds of beef to one customer, two and three fourths pounds to a second customer, and one pound to a third customer. How many pounds of beef did the shop sell to the three customers?
Instructional Video2:20
Curated Video

Multiplying Two-Digit Whole Numbers Using the Standard Procedure (Example)

K - 12th
Multiply two two-digit whole numbers using the standard algorithm.
Instructional Video4:00
Curated Video

Fractions as a Sum of Parts on the Number Line

K - 12th
Decompose a fraction (x/y) into a sum of parts (a/y + b/y + ...) on the number line.
Instructional Video7:26
Curated Video

Benchmark Fractions

K - 12th
Using “Benchmark” fraction one half to compare fractions.
Instructional Video3:14
Curated Video

Angles and Degrees

K - 12th
Understand that angles can be measured by degrees and that a one-degree angle is 1 part out of 360 of a circle.
Instructional Video3:24
Brian McLogan

What is synthetic division and how do we set it up

12th - Higher Ed
👉 Learn about dividing by synthetic division. Synthetic division is a method of dividing polynomials by linear expressions. To divide using synthetic division, we equate the divisor to 0 and then solve for the unknown, the solution for...
Instructional Video2:38
Curated Video

Subtraction of Rational Numbers in Real World (Part 1)

K - 12th
Apply the subtraction of rational numbers in a real-world situation.
Instructional Video2:43
Curated Video

Subtracting Rational Numbers: Fractions

K - 12th
Subtract two rational numbers in fraction form.
Instructional Video3:57
Curated Video

Subtracting Rational Numbers: Decimals

K - 12th
Subtract two rational numbers in decimal form.
Instructional Video2:39
Curated Video

Solving Subtraction Equations Using Inverse Operations

K - 12th
Solving one-step equations using inverse operations: subtraction equations.
Instructional Video2:14
Curated Video

Present Box (Find the volume of a rectangular prism with fractional edge lengths)

K - 12th
Cathy is planning to ship a present to her brother. She wants to make sure the box she purchased has a volume large enough to contain the gift. Can you help her find the volume of the box?
Instructional Video3:32
Curated Video

Multiplication as Resizing (Part 2)

K - 12th
Interpreting multiplication as resizing with a scale factor greater than, less than or equal to 1.
Instructional Video3:20
Curated Video

Dividing Decimals Using the Number Line

K - 12th
Divide decimals using the number line.
Instructional Video2:18
Curated Video

Charity Jars (Part 2) (Use equivalent fractions to solve word problems involving addition of fractions with like and unlike denominators)

K - 12th
Alex owns a supermarket; she placed an empty charity jar of the same size on each of her two counters. Jar A is marked by the following scale of fractions, one thirds, two thirds, 1. And jar B is marked by the following scale, one fifth,...
Instructional Video4:09
Curated Video

Adding Decimals Using a Number Line

K - 12th
Add decimals to hundredths using the number line.
Instructional Video8:17
Curated Video

How to Classify Real Numbers

9th - 12th
This lesson reviews key vocabulary of real numbers. A Venn Diagram is used to classify real numbers. You will learn how to use vocabulary words - whole, integer, rational, irrational and real to classify numbers.



Grade 8...
Instructional Video5:37
Curated Video

The Intersection (Solve addition and subtraction problems to find unknown angles on a diagram in real-world and mathematical problems)

K - 12th
Main and commercial streets intersect at a 120 degrees angle. If broadways is another street that is between them and it is perpendicular to Main street. What is the angle between Broadway and commercial streets?
Instructional Video5:10
Curated Video

Short Division

K - 12th
Find whole-number quotients and remainders by dividing whole numbers of up to four-digits (dividend) by one-digit whole numbers (divisor) using a short division method.
Instructional Video5:30
Curated Video

Reading and Writing Whole Numbers (Base-ten numerals)

K - 12th
Read and write multi-digit whole numbers in base-ten numerals.
Instructional Video5:02
Curated Video

Long Division with Remainder (Part 2)

K - 12th
Find whole-number quotients and remainders by dividing whole numbers up to four-digits (dividend) by one-digit whole numbers (divisor) using long division (standard algorithm).
Instructional Video3:49
Curated Video

Fractions as a Sum of Parts Using Area Models

K - 12th
Decompose a fraction (x/y) into a sum of parts (a/y + b/y + ...) using visual models.
Instructional Video2:55
Curated Video

Chicken and Eggs (Solve multiplicative comparison word problems involving finding the size of the group using drawings)

K - 12th
Flopsy and Mopsy are egg-laying chickens. Today Flopsy laid 8 eggs, then she asked Mopsy: How many eggs did you lay today? Mopsy likes riddles, so she didn't answer the question directly.

She said to Flopsy: You laid 4 times as...
Instructional Video5:21
Curated Video

Counting Siblings (Draw a line plot to represent data with several categories.)

K - 12th
Suppose we want to count the number of brothers and sisters each student has in John's class and then represent the information in a line plot.