Instructional Video6:22
Curated Video

Dividing a Decimal by a Whole Number

3rd - 5th
Divide a decimal by a whole number using the traditional method.
Instructional Video2:56
Curated Video

Irrational Numbers

3rd - 5th
Introduce irrational numbers.
Instructional Video1:43
Curated Video

Approximating Square Roots (Example)

K - 12th
Approximate square roots.
Instructional Video1:18
Curated Video

Simplifying Expressions (Part 1)

K - 12th
Simplifying expression when subtraction is involved.
Instructional Video3:24
Curated Video

Representing Real-World Situations with Inequalities (Part 2)

3rd - 5th
Represent real-world situations with inequalities.
Instructional Video2:15
Curated Video

Exponents in Word Form

3rd - 5th
Read and write numbers in exponential notation “squared, cubed and to the power of“.
Instructional Video3:17
Curated Video

Combining Like Terms

3rd - 5th
Factor to combine like terms in algebraic expressions.
Instructional Video2:09
Curated Video

Adding Zeros When Dividing Decimals by Powers of 10

3rd - 5th
Add leading zeros when dividing decimals by powers of ten.
Instructional Video3:34
Curated Video

Adding Fractions Using the Number Line (Part 2)

3rd - 5th
Add fractions with unlike denominators using the number line.
Instructional Video12:13
Curated Video

Circles and Circumference

9th - 12th
This video lesson will review key vocabulary terms about circles and finding circumference of circles and semicircles. Students will learn how to describe a circle in terms of radius and diameter, understand the concept of pi, and find...
Instructional Video2:57
Curated Video

Fourth Grade Students (Use estimation strategies (clustering around an average), and assess the reasonableness of answers in multistep word problems)

3rd - 5th
In Sara’s school there are 5 classes in 4th grade ,class 1 has 19 students, class 2 has 21 students, class 3 has 23 students, class 4 has 20 students, and class 5 has 19 students. About how many fourth grade students are in the school...
Instructional Video6:18
Curated Video

Division Using Repeated Subtraction

3rd - 5th
Find whole-number quotients and remainders by dividing whole numbers of up to two-digits (dividend) by one-digit whole numbers (divisor) using repeated subtraction.
Instructional Video3:24
Curated Video

Finding the Unknown Sides' Lengths

3rd - 5th
Find the unknown side length of a plane figure given its perimeter and the lengths of the remaining sides (one-step).
Instructional Video2:33
Curated Video

School Theater (Use multiplication to solve word problems using arrays and a symbol for the unknown.)

3rd - 5th
A school theater has seats arranged in 7 rows and each row has 9 seats. What is the number of seats in the theater?
Instructional Video2:28
Curated Video

Recognizing Rectangles

K - 12th
Recognize squares as a sub-category of rectangles.
Instructional Video2:27
Curated Video

Power of a Quotient Property (Part 2)

K - 12th
Find the power of a quotient.
Instructional Video2:25
Curated Video

Negative Exponents (Example)

K - 12th
Simplify expressions with negative exponents.
Instructional Video4:25
Curated Video

Evaluating Cube Roots (Part 2)

3rd - 5th
Evaluate cube roots of numbers.
Instructional Video1:14
Curated Video

Dividing Numbers in Scientific Notation (Example)

3rd - 5th
Divide numbers in scientific notation.
Instructional Video1:15
Curated Video

Identifying Equivalent Expressions (Example)

3rd - 5th
Identify when two expressions are equivalent.
Instructional Video3:03
Curated Video

The Solutions of an Inequality (Example)

K - 12th
Identify a solution to an inequality from a number set.
Instructional Video5:57
Curated Video

Rectangles with Fractional Side Lengths

K - 12th
Find the area of a rectangle with fractional side lengths.
Instructional Video4:25
Curated Video

Product of Two Proper Fractions

K - 12th
Understanding the product of two proper fractions using area models.
Instructional Video4:36
Curated Video

Placing the Decimal Point in the Product

K - 12th
Multiply decimals to hundredths by placing the decimal point with estimation and counting digits.