Sharing Versus Repeated Subtraction
Third graders participate in a lesson that has the intentional of increasing the skill of division. They compare two methods of performing division.Then students must give a rationale why the two methods yield the same solution.
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Initial Fraction Ideas Lesson 23: Overview
Celebrate young mathematicians' ability to compare, add, and subtract fractions with this math review lesson. To demonstrate their newly acquired knowledge, children solve a series of fraction word problems, explaining their solutions in...
3rd - 6th Math CCSS: Adaptable
Solve Division Problems by Subtracting Equal Groups
It is very important to understand what it actually means to divide. Learners will find out that because multiplication is repeated addition, it stands to reason that division is repeated subtraction. They'll use a number line to...
3 mins 3rd - 4th Math CCSS: Designed
Find Perimeter with Missing Side Lengths
In the fourth video of this 7-part series, learners find out how to measure perimeter of a square or rectangle with the aid of square tiles. A review of the difference between a square and rectangle begins the lesson. Then, examples walk...
3 mins 2nd - 4th Math CCSS: Designed
Convert Measurements to Solve Volume Problems
The second of five videos on solving word problems involving measurement data conversion focuses on converting a larger unit to a smaller unit in a real-life word problem. A review of milliliters versus liters starts the discussion,...
7 mins 3rd - 5th Math CCSS: Designed
Find the Perimeter of a Rectangle Using an Area Model
A real-world problem is posed at the beginning of the fourth of six lessons on applying formulas for area and perimeter. A review of the definition of squares and rectangles begins the discussion, followed by an example of solving a...
5 mins 3rd - 5th Math CCSS: Designed