Curated OER
What Are Numerical and Algebraic Expressions?
Numerical expressions contain numbers and mathematical operations. In addition to numerical expressions, algebraic expressions contain not only numbers but also variable(s). Watch this video as the instructor illustrates several examples...
Curated OER
Basics of Ratios
A good definition of a mathematical vocabulary term is worth its weight in gold. This video tutorial defines the term ratio, provides three different ways ratios are expressed, and gives a real-life ratio example. Good video for those...
Curated OER
How Do You Solve an Inequality by Multiplying by a Positive Number?
Instruct your pupils on solving inequalities by multiplying by positive numbers with this video. The video presents how to do just this in step-by-step fashion. A straightforward video, this could be used to supplement your lesson during...
Curated OER
How Do You Solve an Inequality by Multiplying by a Positive Number?
Instruct your pupils on solving inequalities by multiplying by positive numbers with this video. The video presents how to do just this in step-by-step fashion. A straightforward video, this could be used to supplement your lesson during...
Curated OER
How Do You Translate Phrases into Numerical Expressions?
Translating verbal phrases into numerical expressions can often be tricky. Your pupils most likely need to practice these. The instructor helps identify key terms by first identifying the operation. Then she looks for the numerical...
Curated OER
The Equal Sign
Oh that equal sign! Russel kindly explains what an equal sign is and what it means. He provides several examples in this super short yet informative video.
GCFGlobal.org
Excel 2016: Intro to Formulas
How do techies use formulas in an Excel spreadsheet to calculate numerical data? A short instructional video teaches scholars about cell references, mathematical operators, and models how to create, copy, and edit formulas.
Curated OER
Singapore Math: Grade 3a, Unit 2 (Part 7)
If you need to extend your four-digit addition example problems, this video is perfect. Sal provides a variety of practice problems firmly based on the place value system. Each problem is wonderfully explained using multiple colors and a...
Curated OER
What's the Multiplication Property of Inequality?
Applying the multiplication property of inequality is just like working with linear equations. What is done on one side of the equation needs to be done on the other side of the equation. So this rule can be applied to inequalities. In...
Curated OER
How Do You Multiply Trinomials?
Click on this video and see how to use the distributive property to multiply trinomials. The instructor does some of the math in her head but she talks out loud to explain what she is doing to get the terms that she is writing on the...
Virtual Nerd
How Do You Solve a Two-Step Equation by Distributing a Fraction First?
Are you stumped by having a fraction in front of the parentheses in an equation you are trying to solve? Never fear. Watch as the instructor shows you how to work your way through this equation starting with the distributive property and...
Curated OER
What's the Division Property of Inequality?
This video shows a quick definition and some examples of how to apply the division property of inequality. It's just like working with linear equations in that what you do on one side of the equation needs to be done on the other side of...
Curated OER
How Do You Solve an Inequality Where You're Multiplying Negative Fractions?
Examine the multiplication property of inequality with this video. An instructor goes through a problem, detailing how to solve an inequality when you need to multiply negative fractions. She defines reciprocal and puts the final...
Khan Academy
Singapore Math: Grade 3a, Unit 2 (Part 6)
Sal reinforces the concepts taught in the first video on Singapore's four-digit addition with a series of addition problems. The video would be an excellent homework assignment. Ask your class to view it at home and write a paragraph on...
3Blue1Brown
Vectors, What Even Are They? | Essence of Linear Algebra, Chapter 1
Take a look at vectors as geometric objects and then as an algebraic concept. The second video in a series of 15 introduces the vector using three perspectives: the physics, computer science, and mathematical. The resource shows the...
Curated OER
How Do You Solve an Inequality Where You're Multiplying Positive Fractions?
Provide this video as additional instruction on how to solve inequalities when you need to multiply positive fractions. The focus of this video is on how to use the multiplication property of inequalities correctly. The lecturer explains...
Math Antics
Adding and Subtracting Fractions
Why can't mathematicians add just like they multiply fractions? The resource provides a counterexample to show that the same rules for multiplying fractions do not work for addition. Using the counterexample, learners see the proper way...
Math TV
Math tv.com: Basic Mathematics: Decimals: Multiple Operations
Math students offer step-by-step solutions to solving expressions involving decimal division, multiplication, and addition. In the left-hand menu, click on Basic Mathematics, Decimals, Multiple Operations.
Math TV
Math tv.com: Basic Mathematics: Decimals: Addition and Subtraction
Math students offer step-by-step solutions to problems involving decimal addition and subtraction. In the left hand menu, click on Basic Mathematics, Decimals, Addition and Subtraction.
Math TV
Math tv.com: Basic Mathematics: Mixed Numbers: Multiple Operations
Students provide step-by-step solutions to math problems involving the addition, multiplication, and division of mixed numbers. In the left hand menu, click on Basic Mathematics, Mixed Numbers, Multiple Operations.
Crash Course
Crash Course Computer Science #5: How Computers Calculate the Alu
This video [11:09] focuses on how computers calculate -- the ALU. Today we're going to talk about a fundamental part of all modern computers. The thing that basically everything else uses - the Arithmetic and Logic Unit (or the ALU). The...