Instructional Video2:15
Curated Video

Comparing Whole Numbers in Words

K - 12th
Compare two multi-digit whole numbers in base-ten numerals.
Instructional Video4:10
Curated Video

Regular & Irregular Polygons

3rd - 5th
Regular and Irregular Polygons.
Instructional Video3:18
Curated Video

Metric System (Part 2)

3rd - 5th
Metric system.
Instructional Video8:31
Curated Video

Using the Quadratic Formula

9th - 12th
This lesson will review and provide practice on how to use the quadratic formula. Learn to develop good habits using the formula and what different outcomes mean to the solution.
Instructional Video4:59
Curated Video

Comparing Decimals to Hundredths Using Visual Models

3rd - 5th
Compare two decimal numbers to hundredths using visual models and record the result with the symbols.
Instructional Video2:11
Curated Video

Comparing Whole Numbers in Base-Ten Numerals

K - 12th
Compare two multi-digit whole numbers in base-ten numerals.
Instructional Video1:42
Curated Video

Jim's Family (Solve equations that represent verbal statements of multiplicative comparison)

3rd - 5th
Jim is 2 years old. And His brother John is 5 times older than Jim. While their father is 4 times older than John. What are the ages of John and his father?
Instructional Video2:42
Curated Video

Breaking Shapes into Equal Parts

K - 12th
Partition shapes into equal areas and express each part as a unit fraction.
Instructional Video3:24
Curated Video

Classifying Polygons Based on Parallel Lines

K - 12th
Classifying polygons based on the presence or absence of parallel lines.
Instructional Video3:36
Curated Video

Comparing Rational Numbers in the Real World

3rd - 5th
Compare rational numbers in the real world.
Instructional Video2:06
Curated Video

Digits and Place Value (Part 2)

3rd - 5th
Understand digits and place values.
Instructional Video3:30
Curated Video

Equivalent Fractions Using Visual Models

K - 12th
Introducing equivalent fractions using visual models.
Instructional Video3:18
Curated Video

Angles in Two-Dimensional Figures

3rd - 5th
Introducing angles in two-dimensional figures.
Instructional Video5:41
Curated Video

Mixed Numbers and Improper Fractions

3rd - 5th
Represent mixed numbers and improper fractions using visual models.
Instructional Video8:00
Curated Video

Long Division (Four-Digit Dividend)

3rd - 5th
Find whole-number quotients by dividing four-digit whole numbers (dividend) by one-digit whole numbers (divisor) using long division (standard algorithm).
Instructional Video3:11
Curated Video

Reading Data in Bar Graphs

3rd - 5th
Read data in detailed bar graphs drawn on a grid.
Instructional Video3:34
Curated Video

Classifying Polygons Based on Perpendicular Lines

3rd - 5th
Classifying polygons based on the presence or absence of perpendicular lines.
Instructional Video3:21
Curated Video

Applying the Distributive Property Using Area Models (Part 1)

K - 12th
Apply distributive property using area models.
Instructional Video4:57
Curated Video

Sharing Cereals (Use the four operations to solve word problems involving measurements expressed as fractions and decimals)

K - 12th
A box has eight tenths kilogram of cereal. If 3 people wanted to have one fourth kilogram of cereal each, will there be enough cereal in the box to serve all of them?
Instructional Video3:51
Curated Video

Parallel, Intersection and Perpendicular Line

K - 12th
Identify and draw perpendicular and parallel lines.
Instructional Video4:05
Curated Video

Metals Weight (Use the four operations to solve word problems involving measurements expressed in fractional or decimal numbers and requiring conversion of larger units to smaller units)

K - 12th
Lee is working in the materials laboratory. He measures the weights of various small pieces of metal. The table shows the sheet where he recorded the different weights. What is the total weight in ounces of the metals that were measured...
Instructional Video9:23
Curated Video

Division, Multiplication and Subtraction

K - 12th
Understand division and its relation to multiplication and repeated subtraction.
Instructional Video6:04
Curated Video

Rotations (Identify the relationship between two numerical patterns derived from descriptions/rules in problems and graph them)

3rd - 5th
Let’s say we have a ceiling fan, and a washing machine and we want to compare the pattern of rotation of the fan and the drum in the washing machine over time.
Instructional Video7:09
Curated Video

Long Division (Three-Digit Dividend / One-Digit Divisor)

3rd - 5th
Find whole-number quotients by dividing three-digit whole numbers (dividend) by one-digit whole numbers (divisor) using long division (standard algorithm).