Khan Academy
Absolute Value Inequalities, Linear Equations, Algebra I
Combining the skills from the previous videos, particularly inequalities and absolute values, Sal works to solve several new sample problems. He encourages watching the video "over and over," which is good advice for mathematicians of...
Khan Academy
Equations And Inequalities
Several problems involving inequalities and defining the variables are a piece of cake for Sal, and they will be to your Algebra pupils as well after they watch this video. Sal's careful explanation and explicit annotations are key to...
Khan Academy
Multiplying and Dividing with Inequalities, Linear Inequalities, Algebra I
Things get a little more complicated in this video, which features Sal solving several inequality problems involving multiplying and dividing by positive and negative numbers. Additionally, he uses a few more kinds of notation to...
Curated OER
SAT Prep: Test 4 Section 4 Part 2
Problems 7-11, which involve both geometry and algebra problems, allow students to practice transitioning between skills. Sal takes time to explain the process of each problem so that students will understand the test strategies as well...
Khan Academy
SAT Prep: Test 6 Section 9 Part 1
Word problems on the SAT can be some of the trickier questions. In this practice session from page 743 in The Official SAT Study Guide, Sal demonstrates how to read word problems as algebraic expressions, writing the necessary equation...
Khan Academy
Inequalities Using Addition and Subtraction, Linear Inequalities, Algebra I
Beginning with a "handful of fairly simple inequality videos," Sal demonstrates a few inequality problems in which mathematicians must add or subtract. Though he states that his goal is to familiarize viewers with the notation, his...
Khan Academy
SAT Prep: Test 3 Section 8 Part 2
Problems 7-9 involve exponents, inequalities, and geometric figures (diameter and radius), all of which Sal explores eagerly. After misreading one problem, he takes care to correct his mistake, showing students how important it is to...
Khan Academy
SAT Prep: Test 6 Section 9 Part 2
With pen in hand and diagrams at the ready, Sal demonstrates problem-solving and test-taking skills in this informative video. Problems 7-9 involve inequalities, linear equations, and measuring angles in a right triangle.
Khan Academy
Introduction to Graphing Systems of Linear Inequalities, Algebra II
If your class has a grasp on the concept of graphing systems of equations and has worked with inequalities, then it's time to expose them to the wonders of graphing systems of inequalities. Using various colors and a graph, Sal explains...
Khan Academy
Multiplying and Dividing with Inequalities Example, Linear Inequalities, Algebra I
Sal expounds on the concept of solving and graphing one-step inequalities. He solves two practice problems along the way. If shown in conjunction with Khan's other inequality video lesson, they would make a great lesson on inequalities.
Khan Academy
One-Step Inequality Involving Addition, Linear Inequalities, Algebra I
Practice problems are great ways to engage your charges with a new concept. Sal solves for x + 8 less than or equal to six and then graphs the solution. First, he subtracts eight from both sides, and then he subtracts six. Next, he draws...
Khan Academy
Multi-Step Inequalities, Linear Inequalities, Algebra I
Complete an algebra lesson with this video on evaluating and solving multi-step inequalities. Sal Khan completes several practice problems, explaining his process while exemplifying strong teaching skills. Each problem is different and...
Khan Academy
Example of Plotting a Simple Inequality on a Number Line, Pre-Algebra
Graphs are excellent tools for visualizing data. Use this video to demonstrate what inequalities look like on a number line. Sal draws a number line and shows the inequality. He effectively employs differentiated colors to express the...
Khan Academy
Compound Inequalities 2, Linear Inequalities, Algebra I
Practice solving compound inequalities by isolating an unknown variable. This is the second video in a series of four focused on solving compound inequalities.
Flipped Math
Solve Inequalities
One solves inequalities just like equations ... well, almost. Pupils watch a video lecture on solving linear inequalities. They practice solving inequalities, check their answers with the video, and continue to practice the concept with...
PBS
Math in Fencing: Division of Clock Time
Is there time? Fencers need to make mental calculations within a match. The Math at the Core MS: Ratios resource points out that fencers calculate the ratio of touches per time left to help develop strategies to win. The competitors also...
Corbett Maths
Inequalities and Regions
Learn to systematically find the solution. Scholars watch a short YouTube video that shows how to solve systems of inequalities. The method shown here is to graph each inequality and find the region that is a solution for all the...
Corbett Maths
Inequalities
Inequalities are more than just math symbols. Pupils learn about one-variable inequalities by watching a short YouTube video. After reviewing the meaning of inequality signs, the video explains how to interpret and write one-variable...
Corbett Maths
Lower and Upper Bounds
Teach young mathematicians to keep an eye on boundaries! Young scholars use a video lesson to explore the possible values of numbers rounded to varying place values. The instructor provides an explanation to several contextual...
Anywhere Math
Solving Inequalities using Addition and Subtraction
You can't solve the inequalities of the world, but you can solve these problems. An insightful video shows pupils how to solve one-step inequalities involving addition or subtraction. It covers two mathematical examples and one...
Anywhere Math
Solving Inequalities with Addition or Subtraction
Not all videos are made equal. Viewers of a short YouTube video see how to solve one-step inequalities. It also covers how to graph the solution set to an inequality before showing how to apply inequalities to a real-world situation.
Anywhere Math
Writing and Graphing Inequalities
Inequalities mean not equal—and are not difficult at all. An engrossing YouTube video teaches scholars how to write inequalities from verbal statements. It also explains how to determine if a value is a solution to an inequality and how...
CK-12 Foundation
Comparing Triangle Angles and Sides: Lesson
Use the opposite to organize angles or sides. The video provides the relationship of angle measures based on the lengths of sides in a triangle and its converse. Using two triangles, the segment of a larger playlist on geometry shows the...
CK-12 Foundation
Triangle Inequality Theorem: Lesson
Can any three lengths make a triangle? One of the videos in a playlist on basic geometry introduces the Triangle Inequality Theorem. Using three given lengths, the presentation illustrates the restrictions on lengths of any side of a...