Curated Video
Writing Multiplication Expressions: Counting Equal Groups and Objects
In this video, the teacher explains how to write multiplication expressions to represent illustrations by counting equal groups and objects in each group. The students learn to identify equal groups and use multiplication to find the...
Curated Video
Multiplying Positive and Negative Integers Using Equal Groups
This video demonstrates this concept using models and a number line, showing how to determine the product of two integers when one factor is positive and the other is negative. The video provides clear explanations and examples to help...
Curated Video
Writing Multiplication Expressions to Represent Illustrations
In this video lesson, students will learn how to write multiplication expressions to represent illustrations by counting equal groups and objects in each group. Students are then given practice problems to apply their knowledge and...
Curated Video
Listing Factor Pairs to Solve Equal Grouping Word Problems
The video is a math lesson that teaches students how to solve word problems related to equal groupings by listing factor pairs. The example problems given involve creating treat bags with equal amounts of mints or gum, and the video...
NUMBEROCK
Equal Groups Multiplication Song | Repeated Addition Using Arrays
Video: Equal Groups (Repeated Addition Using Arrays) Grade Levels: 2nd Grade - 3rd Grade For 2nd Grade, using repeated addition to find the number of objects in an array sets the foundation for multiplication. By representing groups of...
Curated Video
Multiplication and Arrays: Representing Multiplication with Visuals
In this video, students learn how to represent multiplication using arrays. The teacher explains the concept through examples of carrots, tomatoes, and flowers, demonstrating how the number of rows and columns in an array corresponds to...
Curated Video
Exploring the Inverse Relationship between Multiplication and Division with Fractions
In this lesson, students will explore the inverse relationship between multiplication and division as it relates to fractions. They will learn how to use fact families to check their answers and understand that the inverse relationship...
Curated Video
Representing Equal Groups with Multiplication
In this video, students learn how to represent equal groups using multiplication. The teacher explains the concept of equality and demonstrates how to write equations to show equal groups. Through examples of softballs in boxes and...
Curated Video
Dividing Fractions and Representing Remainders
In this video lesson, the teacher explains how to solve division problems involving fractions when there is a remainder. The students learn to divide fractions by fractions and represent any leftover pieces by thinking about equal...
Curated Video
Proving Even Numbers: Representing as the Sum of Two Equal Addends
In this video, the teacher explains how to prove that a number is even in math by representing it as the sum of two equal addends. They demonstrate this concept using examples and visuals, showing that even numbers can be evenly split...
Curated Video
Finding the Greatest Common Factor
In this video, students learn how to find the greatest common factor of two numbers by listing factor pairs. The concept is explained through a word problem involving Jon and Elly making treat bags for their class party. The video...
Curated Video
Representing Equal Groups with Arrays
In this video, students learn how to represent equal groups using arrays. We explain the concept of equal groups and demonstrates how to use multiplication equations and arrays to visually organize and represent these groups. Through...
Curated Video
Comparing Fractions: Using Visual Models
In this lesson, students will learn how to compare fractions with different denominators using visual fraction models. They will understand that fractions represent parts of a whole or a set, and that the numerator represents the shaded...
Curated Video
Multiplying Fractions by Whole Numbers using Bar Models
In this video lesson, students will learn how to multiply fractions by whole numbers using bar models. The teacher demonstrates the process by using real-life scenarios, such as sharing oranges and placing roses in a vase.
Curated Video
Modeling Multiplication Situations with Equal Groups and Arrays
In this video, students learn how to model situations using multiplication equations. They are introduced to the concept of equal groups and arrays, and how they can represent multiplication expressions.
Curated Video
Using Visualizations to Solve Word Problems with Equal Groups
In this lesson, students will learn how to solve word problems by visualizing equal groups. By understanding the concept of equal groups and knowing how to identify the number of groups, the amount in each group, and the total, students...
Curated Video
Reducing Ratios Using Common Factors
In this video, the teacher explains how to create equivalent ratios by reducing them using common factors. They provide examples and visuals to help students understand the concept.
Curated Video
Solving Equations Using a Balance Scale
In this lesson, students learn how to solve simple equations using the concept of balance. By using a balance scale analogy, they understand the importance of adding the same value to both sides of the equation to maintain balance.
Curated Video
Dividing Using an Area Model
In this video, the teacher demonstrates how to divide using an area model. The students are shown how to break down division problems into smaller parts and use multiplication to find the solution. The teacher emphasizes the use of...
Khan Academy
Khan Academy: Basic Multiplication
Provides a basic introduction to multiplication using drawings of equal groups and repeated addition. [13:20]
Khan Academy
Khan Academy: Two Step Word Problem: Truffles
Models how to solve a two-step word problem involving multiplication and division by drawing equal groups and writing equations. [5:00] CCSS.Math.Content.3.OA.D.8 Solve two-step word problems using the four operations.
Khan Academy
Khan Academy: Division Word Problem: Blueberries
Models how to solve a division word problem using a picture of equal groups. [4:03]
Khan Academy
Khan Academy: More Ways to Multiply
Sal Khan uses arrays and repeated addition to multiply. [5:28]
Khan Academy
Khan Academy: Multiplication With Arrays
Sal Khan uses arrays to show different ways to multiply and get the same solution. [4:18]