Curated OER
How Do You Do Long Multiplication?
Multiplying multi-digit numbers without a calculator. First, make sure you align the numbers properly. It's not just about multiplying, but there's carrying numbers and adding numbers and placeholders. You can do it, just remember to...
Curated OER
How Do You Find the Perimeter of a Rectangle?
The teacher illustrates a diagram to help you learn about perimeter. First she adds the sides together to get the perimeter. Then she shows how to use the perimeter formula to make it a bit simpler.
Curated OER
How Do You Square a Number?
Multiply a number by itself and that is squaring a number. Simple as that, and, if it's an integer you have a perfect square.
Curated OER
What are Consecutive Numbers?
The instructor writes an example of integers in consecutive order, or counting order, and also an example of integers not in consecutive order. She then shows two special types of consecutives number patterns.
Curated OER
What is a Rational Function?
A rational function can be written as a ratio of two polynomials. There are a couple of rules concerning the denominator so watch this video and find out what they are.
Curated OER
Why Can't You Divide By 0?
A mathematic impossibility? What? There's something you can't do in math? Yes! Believe it or not, you can't divide by zero! Watch this video and see the proof.
Curated OER
What's a Prime Polynomial?
The instructor defines a prime polynomial as much the same as a prime number: they only have two factors, 1 and itself. She further demonstrates what a composite polynomial is to give an example of a polynomial that is not prime.
Curated OER
What's a Rational Number?
A few examples of numbers, whole, mixed fraction, and decimal, that can be written in fraction form to prove they are rational numbers.
Mathispower4u
Order of Operations with Integers: a+b(c-d((e^2)+f))
Simplifying expressions in a nice, orderly fashion is ideal. Young scholars learn to simplify expressions of the form a + b(c - d(e^2 + f). The exercise obviously requires meticulous use of the order of operations.
Mathispower4u
Multiply and Divide Integers
Conquer two operations with just one rule. Viewers of a short YouTube video learn how to multiply and divide integers. They first consider multiplication as repeated addition, then learn to apply integer rules for multiplication and...
Mathispower4u
Adding Integers
It's always nice to have two methods to count on. Young mathematicians learn to add integers by watching a short YouTube video. It covers addition using a number line and through the use of integer rules.
Curated OER
Dividing Integers
Clear up the confusion surrounding division of negative numbers with this short video. Viewers will learn how to determine if the answer to an integer problem is going to be negative or positive, and they'll witness the tutor work...
Khan Academy
MTEL Math Practice Test: 16-19
Providing quick lessons on lattice multiplication algorithms and inequalities, Sal takes viewers through problems 16-19 on the MTEL Practice Math Test. His calm and knowledgeable narration and easy-to-read annotations of each problem...
Curated OER
How Do You Find the Square Root of a Perfect Square?
What is the relationship between squaring a number and taking the square root of a number? The instructor in the video explains the relationship of perfect square and its square root integer.
Curated OER
How Do Different Categories of Numbers Compare To Each Other?
The teacher defines and writes a list of the different categories of numbers. But sometimes it's hard to keep all that organized. So she draws a diagram and explains further how the categories of numbers compare or relate to each other....
Curated OER
How Do You Subtract Polynomials Vertically?
Subtract polynomials? Huh? First off, find the additive inverse of the number you are subtracting. Next, rewrite the polynomials one on top of the other. Make sure to line up the like terms and then write in placeholders. Now, add the...
Curated OER
How Do You Add Polynomials Vertically?
The instructor demonstrates how to line up two polynomials vertically to add them together. She emphasizes lining up the terms with the same powers. She also identifies some places where there is no term and shows how to write a...
Curated OER
How Do You Compare Integers Using a Number Line?
Use a number line to plot the given points to compare their value. The given numbers in this problem are both negative so remember that whichever number is furthest to the right is the larger value. Watch this short video and see how to...
Curated OER
How Do You Subtract Integers Using a Number Line?
There are times when you might want to use a number line to help you visually understand what is happening mathematically. Subtracting integers might be one of those times. So take a look and see which direction you need to move on the...
Curated OER
How Do You Find All the Factors of a Number?
How do you find the factors of a given number? The teacher will show you how to use a table, test out your answers, and then write all your factors in a list. If you know the divisibility rules, that will also help you out.
Curated OER
How Do You Find a Missing Term in a Polynomial?
The instructor does a very good job of explaining all the things you need to do to find the integer values of this given trinomial. She demonstrates how to set up a template to be able to check the signs of the terms. Next step, what are...
Curated OER
How Do You Use an Equation with Consecutive Numbers to Solve a Word Problem?
Mrs. Jenkins has five children. How old is each one of them? A big word problem with lots of numbers to figure out. Show this video to your class! The more exposure your learners have to word problems, the more comfortable they will be...
Curated OER
Number System Relationships
Build a strong number system relationships with your class by viewing this video. Natural, whole, integers, and rational numbers are shown as a series off cups that fit into each other.
Curated OER
Comparing Integers
When you compare integers to determine their order or which is largest, you can plot them on a number line. Duane demonstrates how to use a number line, plot integers, make a comparison, then determine which integer is largest and which...