Curated Video
Triangle Sum Theorem and Exterior Angle Theorem
In this video, the teacher explains the basics of triangles, including the interior and exterior angles. The lesson covers the triangle sum theorem, using ratios to find angle measures, and the exterior angle theorem. The teacher...
Curated Video
Understanding Isosceles Triangle Properties
This video explains the properties of an isosceles triangle and helps viewers answer a standardized math test question about it. The teacher breaks down each answer choice and shows how to arrive at the correct answer.
Curated Video
Fractions: Reviewing the Four Operations
In this video lesson we will review how to add, subtract, multiply and divide fractions. We will make connections between adding and subtracting fractions. When you add and subtract fractions, you find a common denominator and add or...
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Rotations about a Vertex
In this short video we will learn how to rotate a figure about a vertex in the coordinate plane. We will learn that the center of rotation is about a fixed point, a vertex, rather than the origin of the coordinate plane. The vertex that...
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Subtracting Decimals to Spend Money
In this short math video we will subtract decimals to spend money and answer a standardized math test question. We will first identify the amount of money we have to spend. We will see that two items were purchased. We will subtract the...
Curated Video
How to Perform Order of Operations with Parentheses
In this short math video we will review how to perform order of operations with parentheses to find the value of an expression. We will begin by review PEMDAS - parentheses, exponents, multiply & divide in order from left to right, and...
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Find Corresponding Angles of Similar Triangles
In this short video we will answer a standardized math test question where we are asked to identify a missing angle of a triangle. We will review the definition and meaning of similar triangles. We will identify which angle corresponds...
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Multiplying Rational Numbers
In this video lesson we will learn that the rules for multiplying rational numbers are the same rules we learned and used to multiply integers. We will review these rules and work through examples with fractions and decimals. We will...
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Solving Equations Using Addition or Subtraction
This video teaches how to solve equations using addition and subtraction, using algebra tiles to model the process and introducing the addition and subtraction properties of equality. The lesson covers examples at varying levels of...
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How to Solve Linear Inequalities
In this video lesson we will learn how to solve and graph linear inequalities in one variable. We will learn that a solution set of an inequality can be visually represented by shading the solution on a number line. We will learn how to...
Curated Video
What is an Integer?
In this video lesson we will discover what an integer is by definition, on a number line and in the real world. Students will understand that integers are positive numbers, negative numbers and zero using a visual image of integers on a...
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Solving Inequalities Using Addition or Subtraction
In this video lesson we will learn how to solve one step inequalities using addition or subtraction. We will learn the Addition Property of Inequality and the Subtraction Property of Inequality. We will isolate the variable term using...
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How to Find Tax, Tip and Discount
During this video lesson we will find tax, tip, discount and markup using percent of increase and decrease. I will provide key vocabulary terms to understand how to find tax, tip, discounts, and markups. Four practice problems with...
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Slicing 3D Figures
In this video, we learn how to slice a square pyramid perpendicular to its base through Vertex V and identify the resulting two-dimensional figure. By using a knife to slice the pyramid in half, we end up with a triangle.
Curated Video
Graphing Linear Inequalities in Two Variables
In this video, a teacher explains how to graph linear inequalities in two variables and use them to solve real-life problems. The teacher covers topics such as the solution set, boundary lines, test points, and determining solutions. The...
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Integers and Absolute Value
In this video lesson, students will learn about integers. Absolute value will be explained and modeled using a number line. Opposites will be defined and modeled. We will also compare integers using less than, greater than, or equal to....
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Percent Proportion: Finding Parts, Holes, and Percents
This video lesson will provide instruction on how to write and solve a percent proportion to find percents, parts or wholes. Proportional relationships will be reviewed, explained and connected to percents to solve multistep percent...
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Create a Unique Triangle
In this short math video we will answer a standardized math test question where we are asked to identify how many unique triangles can be formed given side lengths. We will first draw a picture to represent the triangle and label the...
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Proving Why the Angles of a Triangle Have a Sum of 180 Degrees
In this video, students are guided through a hands-on activity to prove why the angles of a triangle always add up to 180 degrees. By drawing and cutting out a triangle, labeling the angles, and connecting them together, students can...
Curated Video
Adding Integers
In this video lesson, you will learn the rules for adding integers with the same sign and adding integers with different signs. We will begin by using integer chips to model the solution process. We will identify zero pairs and use the...
Curated Video
How to Find Percent Using a Proportion
In this short video we will answer a standardized math multiple choice question where we will use a proportion to find percent. We will begin by understanding the real world problem and that we can use a proportion to identify the...
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Solve a Real World Unit Rate Problem
In this short video we will answer a standardized math test question where we are asked to us unit rate to solve a real world problem. We will begin by identify the unit rate given in the problem. We will write a proportion and use cross...
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Subtracting Integers
In this video lesson we will learn how to subtract integers using integer chips. We will also learn a rule for subtracting integers which will have you rewrite - keep, change, opposite. We will also review rules for adding integers....
Curated Video
How to Identify Vertices, Edges & Faces in Three Dimensional Figures
In this video lesson we will learn how to identify vertices, edges and faces on a three-dimensional solid. We will learn that the edges meet at the vertices. We will discover that each face is formed by edges. We will discover the...