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SciShow
The Cargo Ship Fireball
Reports of a fireball streaking through the sky are never a good sign after losing contact with a rocket.
KnowMo
Using Graphs to Find Solutions
The video discusses how to use graphs to find solutions for systems of equations, both linear and quadratic. The speaker explains how to plot the equations onto graph paper and identify the point of intersection as the solution. They...
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
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
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
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...
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
Agricultural and Commodity Markets: Applying Supply and Demand Analysis
The video is a lecture discussing agricultural and commodity markets with a focus on applying the principles of supply and demand to these industries. The speaker defines key terms and explains the analytical process of establishing...
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
Introduction to Arrays and Solving Equal Groups Problems
In this video, the teacher explains how to solve equal groups problems by drawing an array. They demonstrate how to determine the number of items in each row or column and how to find the total number of items in all.
Curated Video
Solving Equal Groups Word Problems with Bar Models
In this video, students learn how to solve equal groups word problems by drawing a bar model. The video provides step-by-step examples of how to use the bar model to solve problems involving equal groups, such as dividing books evenly...
Curated Video
Understanding Even and Odd Numbers through Grouping and Partnerships
In this video, students learn how to determine if a number is even or odd by forming equal groups and partnerships. The teacher uses visual examples and a number line to illustrate the concept. Students also learn to recognize the...
Curated Video
Interpreting Function Notation: Understanding f(x)
In this video, we explain how to interpret function notation by looking at the language of F of X. We clarify two common misconceptions about function notation and demonstrate how it is used to identify relationships between variables in...
Curated Video
Comparing Lengths and Creating Equal Groups
In this lesson, students will learn how to compare lengths by creating equal groups. They will use real objects and pictures to measure lengths, understanding the importance of lining up the beginning and end of each object. Through...
Curated Video
Division by Subtracting Equal Groups
In this video, students learn how to solve division problems by subtracting equal groups. The teacher explains the concept of division as repeated subtraction and demonstrates how to use this strategy to find the quotient.
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
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
Advancements in Interferometry: Unveiling the Secrets of Stars and Galaxies
This video discusses the advancements in optical interferometry, a technique that combines light from multiple telescopes to create sharper images of stars and galaxies. With the use of the Very Large Telescope in Chile, astronomers are...
Curated Video
Multiplying Negative Integers by Positive Integers
In this video, students learn how to multiply a negative integer by a positive integer by thinking about equal groups. The teacher uses models and a product box to demonstrate the process. Students are shown how to represent negative...
Curated Video
Dividing Whole Numbers by Unit Fractions
In this video lesson, students will learn how to divide a whole number by a unit fraction by thinking about equal groups. The teacher explains the concept using visual representations, such as drawing rectangles and using number lines....
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...
The Business Professor
Complete Accounting Cycle - Financial Accounting - Part 1 of 3
Prof. AJ Kooti explains the accounting cycle. This video is part 1 of a 3 part series.
The Wall Street Journal
Race Relations, Business and Society
Representative Hakeem Jeffries and Vista Equity Partners CEO Robert Smith look at the debate over race relations in the U.S. Is it just divisive or can it lead to a more unified society? What should CEOs focus on, and what does success...
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...