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Teacherflix
4 Views · 10 months ago

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iLearn provides professionally designed math instruction for all markets, including home, K-12, and college. Our instructional programs combine the best scientifically-designed curriculum with state-of-the art delivery systems. Our specialty is providing easy-to-use, highly effective support, for students who have difficulty learning math. It’s the easiest and fastest way to understand math and master math procedures.

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Title: Equivalent Fractions: Rewriting With Smaller Denominator - Fast And Easy Math Learning Videos

You already know that when you find an equivalent fraction with a larger denominator it’s called expanding the fraction. In this lesson you’re going to learn how to find an equivalent fraction with a smaller denominator.
This is called reducing the fraction.
For example, suppose we want to find a fraction that’s equivalent to six-eighths but has a denominator of 4. We can do this using the number line.
First we find six-eighths on the number line.
There are eight parts in each whole unit, and six parts are counted. So this fraction represents six eighths on the number line. Since we want our equivalent fraction to have a denominator of 4, we want each whole unit to have 4 parts instead of 8. We’ll show this on another number line, like this.
Each unit is divided into four parts.
When we compare the number line we see that each fourth here is the same size as two eighths here.
So each fourth of a unit represents 2 eighths of a unit. Now let’s look at the parts that are counted in the fraction six eighths.
When we show the same fraction on the line for fourths, we have only 3 total parts representing the fraction.
Since there are half as many parts in each whole, there are half as many parts counted. In other words, we have divided the numerator and denominator of our original fraction by the same number. In this case, we divided by 2.
This gives us four in the denominator and 3 in the numerator. Since the point on the number line is the same after dividing by 2 the fractions are equivalent. So, six-eights can be reduced and rewritten as the equivalent fraction three-fourths.
Now let’s look at an example without using the number line. In this case, we want to reduce the fraction nine-fifteenths by writing it with a denominator of 5.
First, we want to determine which number we need to divide the original denominator, 15, by to get the new denominator, 5
We know that 15 divided by 3 is 5.
So, we also divide the numerator by 3 to get an equivalent fraction.
9 divided by 3 equals 3.
So the fraction nine-fifteenths can be rewritten as the equivalent fraction - three-fifths.
In this case, we say that the fraction nine-fifteenths is reduced to three fifths. The number represented by the fraction is still the same, but the numerator and denominator are both smaller numbers.
One last example. Here we want to reduce three-twelfths to an equivalent fraction with a denominator of 4.
First, we find the number we need to divide 12 by to get 4.
We know that 12 divided by 3 is 4, so we divide the numerator by 3 also.
Three divided by 3 equals 1, so the numerator of the reduced fraction is 1.
The fraction three-twelfths is reduced to the equivalent fraction one-fourth.
In the remainder of this lesson you’ll practice reducing fractions like these.

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https://youtu.be/7wYPdTeb5R8

Teacherflix
9 Views · 10 months ago

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Teacherflix
12 Views · 10 months ago

In this video, Samantha Bos from the University of Texas at Austin demonstrates how you can use virtual manipulatives to represent a fraction using the set model.

Teacherflix
3 Views · 10 months ago

Learn more and have free access to Practice at: http://[a]www.ilearn.com%2Ffractions[/a]

iLearn provides professionally designed math instruction for all markets, including home, K-12, and college. Our instructional programs combine the best scientifically-designed curriculum with state-of-the art delivery systems. Our specialty is providing easy-to-use, highly effective support, for students who have difficulty learning math. It’s the easiest and fastest way to understand math and master math procedures.

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Title: Improper Fractions and Mixed Numbers - Fast And Easy Math Learning Videos

In this lesson, you will learn about proper fractions, improper fractions, and mixed numbers. Before we begin this lesson, though, we will review fractions that are less than one, equal to one, and more than one. In a previous lesson, you learned that a fraction is less than one when the numerator is less than the denominator.
One-half is less than one.
You also learned that a fraction is equal to one when the numerator and denominator are the same.
Two-halves is equal to one.
And you learned that a fraction is more than one when the numerator is more than the denominator.
Three-halves is more than one.
Here's a new word: proper fraction.
A proper fraction is a fraction less than one. One-half is a proper fraction.
Two-halves is not a proper fraction because two-halves is not less than one
Three-halves is not a proper fraction because three halves is not less than one.
Here's a new word: Improper fraction.
An improper fraction is a fraction equal to one, or more than one.
Two-halves is an improper fraction and three-halves is an improper fraction.
Let's look at a few examples of proper and improper fractions: A proper fraction is a fraction less than one. Five-sixths is a proper fraction.
An improper fraction is a fraction equal to one, or more than one.
Six-sixths is an improper fraction and seven-sixths is an improper fraction.
Here’s an example. In this example, the correct answer is proper fraction. Three-fourths is less than one, so three-fourths is a proper fraction.
So far in this lesson we've covered proper fractions and improper fractions. Now, we will learn about mixed numbers. A mixed number has both a whole number and a fraction.
A mixed number has both a whole number and a fraction.
Now try a few on your own. For the problems that follow, click on the correct answer. In this example, the correct answer is mixed number. Three and one-half has both a whole number and a fraction, so three and one-half is a mixed number.

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https://youtu.be/P8oZaonw5Rk

Teacherflix
2 Views · 10 months ago

Fractions in math are hard because of how we think about them. Is there another way to think about fractions? Yes! We can by talking about fractions differently.

Teacherflix
21 Views · 10 months ago

A short demonstration on how to use the fraction cards to show dividing

Teacherflix
3 Views · 10 months ago

For Free Practice Go To: http://[a]www.ilearn.com%2Ffractions[/a]

iLearn provides professionally designed math instruction for all markets, including home, K-12, and college. Our instructional programs combine the best scientifically-designed curriculum with state-of-the art delivery systems. Our specialty is providing easy-to-use, highly effective support, for students who have difficulty learning math. It’s the easiest and fastest way to understand math and master math procedures.

This video is one of over 800 similar lessons from iLearn on math topics ranging from kindergarten through high school math.

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If you prefer to read, rather than watch this video, here’s the transcript:

Title: Mixed Numbers as Improper Fractions - Fast And Easy Math Learning Videos

To change a mixed number into an improper fraction, first, multiply the whole units by the number of parts in each whole unit.
Then add the left over part
Seven and one-third is equal to twenty-two thirds
Here's another one. First, multiply the whole units by the number of parts in each whole unit.
Then add the left over part
Three and two-fifths is equal to seventeen-fifths.
Last one. First, multiply the whole units by the number of parts in each whole unit.
Then add the left over part
One and three-sixths is equal to nine-sixths.

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https://youtu.be/XtiTk1GmHCI

Teacherflix
6 Views · 10 months ago

Go here for Free Practice: http://www.iLearn.com/fractions

iLearn provides professionally designed math instruction for all markets, including home, K-12, and college. Our instructional programs combine the best scientifically-designed curriculum with state-of-the art delivery systems. Our specialty is providing easy-to-use, highly effective support, for students who have difficulty learning math. It’s the easiest and fastest way to understand math and master math procedures.

This video is one of over 800 similar lessons from iLearn on math topics ranging from kindergarten through high school math.

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• Share this video with your friends via your favorite social site.

For free access to unlimited online practice and tests, along with free access to these lessons, go to:

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For more information, contact us at: www.ilearn.com
1-877-789-2088 ext. 128 (toll free)

If you prefer to read, rather than watch this video, here’s the transcript:

Title: Dividing Fractions

You know that the multiplication of both whole numbers and fractions can be represented using an array that looks like this. This example shows four-fifths multiplied by two-thirds.
The product of multiplying the fractions is eight-fifteenths.
You also know that division is just another way of writing multiplication when one of the factors is unknown. That’s easy to see using this array. Let’s assume that you know the total size of the array, which is eight-fifteenths, and you know one of the factors in the multiplication, four-fifths.
But you don’t know the other factor, which we’ll now call X.
X is the number you need to multiply by four-fifths to get eight-fifteenths.
We can represent this situation with two different number sentences.
The first number sentence is written as multiplication. We know that four-fifths is multiplied by some number on this side called X.
And the result is eight-fifteenths.
We can also describe exactly the same situation with a division number sentence like this.
We know that we have eight-fifteenths, which is divided by four-fifths.
But we don’t know the length of this side of the array, which is the value for X.
So, these equations tell us exactly the same thing because they represent the same situation shown by the array.
The X in both equations represents the same number – it’s the missing value for the length of one side of the array.
While this array is helpful in seeing what a division problem represents, it’s not very helpful in finding out the number we need on this side, because we don’t know how many parts to divide each whole unit into. So how do we find this number? The best way is to use what we know about algebraic reasoning, using these two equations to describe the array.
We’ll start by finding the value of X in the multiplication equation.
This will help us later in understanding how to solve the division equation.
You know that you can multiply both sides of an equation by the same number and it doesn’t change the equation. We can use this to our advantage if we choose the right number to multiply by. We want a number that will give us one X instead of four-fifths X on the left side of the equation.
You know that multiplying any number by its reciprocal gives you 1. Let’s multiply fourth-fifths by its reciprocal like this.
Five-fourths times four-fifths is one, so the left side of the equation now becomes 1 times X, which we write as just X. You also know that if you multiply one side of an equation by a number you have to multiply the other side by the same number.
So, we multiply the right side of the equation by five-fourths.
When we multiply, we get forty-sixtieths.
We can divide both terms by 20, to see that X equals two thirds.
When we compare this to the multiplication problem we started with, we see that two-thirds is the correct answer, because two-thirds times fourth-fifths is indeed eight-fifteenths.
But how does this help us understand how to divide fractions? It’s actually very simple. Let’s look at these two statements from the equations.
Remember that X represents the same number in both equations. It’s the length of this line in the aray.
The equation on the right says you can find X by dividing eight-fifteenths by four-fifths. The eqution on the left says you can find X by multiplying eight-fifteenths by the reciprocal of four-fifths.
Using what you already know about algebra, you can prove that this same approach always works, but we won’t go through that proof here. It means that dividing any number by a fraction and multiplying that number by its reciprocal gives you the same result.
We’ll just look at a couple of examples to verify that this works.
We’ll start with this multiplication statement. Three-fourths times five-eighths equals fifteen-thirty-seconds.

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https://youtu.be/ncad2bziX5s

Teacherflix
2 Views · 10 months ago

Decompose a fraction (x/y) into a sum of unit parts (1/y) using visual models.

Visit: https://www.iconmath.com to see all videos and a complete set of resources.

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Teacherflix
0 Views · 10 months ago

For Free Practice Go To: http://[a]www.ilearn.com%2Ffractions[/a]

iLearn provides professionally designed math instruction for all markets, including home, K-12, and college. Our instructional programs combine the best scientifically-designed curriculum with state-of-the art delivery systems. Our specialty is providing easy-to-use, highly effective support, for students who have difficulty learning math. It’s the easiest and fastest way to understand math and master math procedures.

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• Share this video with your friends via your favorite social site.

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1-877-789-2088 ext. 128 (toll free)

If you prefer to read, rather than watch this video, here’s the transcript:

Title: Fractions as Division - Fast And Easy Math Learning Videos

You already know that you can write the remainder in a division problem as a fraction. In this lesson you’ll learn that all division problems can be written as fractions. First let’s review writing remainders as fractions:
Thirteen divided by 3.
Remember: to solve this problem we make an array.
The array we made is 3 by 4, and there’s 1 left over.
Now we break each of our remaining blocks into 3 parts.
And we continue making the array with the parts.
So, now the array we’ve made is 3, by 4 and one-third.
So, 13 divided by 3 is equal to 4 and one-third.
Instead of just splitting the remainder blocks into thirds, we could have split all of the blocks into thirds before forming the array, like this.
Now we’ll make an array. Remember, since we split the blocks into thirds, each whole block will end up being 1 column in the array.
So the array we formed is 3 by thirteen-thirds.
So 13 divided by 3 is equal to thirteen-thirds.
We can do the same thing for all division problems. Any division problem can be rewritten as a fraction with the numerator as the dividend and the denominator as the divisor.
Let’s look at another example.
Three divided by 4.
Since 3 is less than 4 we cannot make an array without splitting each of the blocks into fourths, like this.
Now we can make an array.
So the array we formed is 4 by three-fourths
So 3 divided by 4 is equal to three-fourths.
Let’s look at another example: 56 divided by 9. We can rewrite this as a fraction with 56 as the numerator, and 9 as the denominator.
Let’s look at one last example
Four-sixths. Just as we can rewrite division problems as fractions, we can also rewrite fractions as division problems. So four-sixths is equal to 4 divided by 6.
In the remainder of this lesson you’ll rewrite division problems as fractions and fractions as division problems.

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https://youtu.be/l4I7Hj-Taxc

Teacherflix
6 Views · 10 months ago

This video covers how to find the "Highest Common Factor" of a group of numbers. We cover 2 methods. The first is the easier method, which involves listing out the factors of each number and picking the highest factor shared by all the numbers. The second involves using prime factors.

This video is suitable for maths courses around the world.

UK:
KS3 - Only need to know the first method (up to 1:55)
GCSE Foundation - Only need to know the first method (up to 1:55)
GCSE Higher - All suitable

Maths Playlist:
https://www.youtube.com/playli....st?list=PLidqqIGKox7

GCSE Chemistry playlist:
https://www.youtube.com/watch?v=fN8kH9Vvqo0&list=PLidqqIGKox7WeOKVGHxcd69kKqtwrKl8W

GCSE Biology Playlist:
https://www.youtube.com/watch?v=--dIBinUdeU&list=PLidqqIGKox7X5UFT-expKIuR-i-BN3Q1g

GCSE Physics Playlist:
https://www.youtube.com/watch?v=aHVJfRxeAxo&list=PLidqqIGKox7UVC-8WC9djoeBzwxPeXph7

Teacherflix
3 Views · 10 months ago

Dr. Powell multiplies fractions using both fraction tiles manipulatives as well as via a drawing demonstration.

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Teacherflix
2 Views · 10 months ago

Materials found in the classroom were used to create this animation. Students used a hamburger to illustrate the concept of fractions to explain this to other students. The planning of this project was integral to their understanding of fractions. Allowing students to be "hands-on" with the materials to create this movie, created a deeper understanding of the process of animation and justifies their knowledge of fractions.

Teacherflix
4 Views · 10 months ago

For Free Practice Go To: http://[a]www.ilearn.com%2Ffractions[/a]

iLearn provides professionally designed math instruction for all markets, including home, K-12, and college. Our instructional programs combine the best scientifically-designed curriculum with state-of-the art delivery systems. Our specialty is providing easy-to-use, highly effective support, for students who have difficulty learning math. It’s the easiest and fastest way to understand math and master math procedures.

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• Share this video with your friends via your favorite social site.

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http://[a]www.ilearn.com%2Ffractions[/a]

For more information, contact us at: www.ilearn.com
1-877-789-2088 ext. 128 (toll free)

If you prefer to read, rather than watch this video, here’s the transcript:

Title: Multiplying Fractions and Whole Numbers - Fast And Easy Math Learning Videos

When we multiply whole numbers, we can show the multiplication using an array like the one shown here. This array shows the multiplication, 2 times 3.
The array is two blocks tall and three blocks wide.
We can show multiplication of a fraction times a whole number using the same kind of array.
Let’s change the first factor in this multiplication to a fraction.
Here we have the fraction 3 halves times the whole number 3. To show the fraction 3 halves, we start by dividing each whole unit on this side into halves, like this.
We show 3 halves here.
We show the whole number 3 here.
Now we draw the array.
We have three halves here, another three halves here, and three more halves here.
We can show that using repeated addition like this.
When we do the addition, we get 9 halves. That means that 3 halves times 3 is 9 halves.
Another example. Two times one third.
Here we have 2 blocks tall times one third of a block wide.
This can also be written as repeated addition. This time, we have the fraction one third, two times.
We write that like this.
One third plus one third.
We know this is equal to 2 thirds.
So, 2 times one third is two thirds.
Another example.
Six fifths times 4. We write this as repeated addition like this.
When we add, we get 24 fifths.
So six fifths times 4 is 24 fifths.
You probably noticed a pattern here. When we do the repeated addition in each case, the result of adding the numerators is the same result as multiplying the numerator of the fraction by the whole number.
Here, we added the numerator three, three times, and got 9.
That’s the same as multiplying 3 times 3 which is also nine.
Here, we added the numerator one, two times, and got 2.
That’s the same as multiplying 1 times 2, which is also 2.
Here, we added the numerator 6, four times and got 24.
That’s the same as multiplying 6 times 4, which is also 24.
So, to multiply fractions, we don’t have to do the repeated addition, we can just multiply the numerator times the whole number.
That gives us the numerator of the result.
The denominator stays the same.
Here’s an example. Four times three fifths. We multiply the numerator, which is three, times the whole number four, which gives us a numerator of 12.
And we keep the denominator.
So 4 times 3 fifths is 12 fifths.
Last example. Two fifths times 3. We multiply the numerator, 2, times the whole number 3, which gives us a numerator of 6, and the denominator stays the same.
The result is 6 fifths.
In the remainder of this lesson you’ll multiply whole numbers and fractions like these.

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https://youtu.be/BV-T6b7S9dc

Teacherflix
3 Views · 10 months ago

Students learn to find equivalent fractions with multiplication by relating the equations to length, area, and number line models. For more videos and instructional resources, visit TenMarks.com. TenMarks is a standards-based program to complement any math curriculum with scaffolded lessons, guided practice, inquiry-based tasks, assessments and interventions.

Teacherflix
4 Views · 10 months ago

Use this shortcut to add fractions easily.
Steps of the Smiley Method
1. Multiply the denominators
2. Starting with the fraction on the left, cross multiply the numerator times the denominator.
3. Add the two solutions from step 2 for your numerator.
4. Reduce if possible

Transcript
Here is a shortcut method for adding fractions. Let's start with 1/2 plus 1/3 I call this method the smiley face because you can tell this looks like a smiley face. The first step is to multiply the two denominators together. 2 times 3 equals 6 and next start on the left and cross multiply so 1 times 3 is 3 and move to the other side and 1 x 2 = 2 and add those together and you get 5/6 Pretty simple. Add the fractions 2/5 + 1/3 Go with Mr. Smiley Start on the left and cross multiply, 2 x 3 = 6 Move to the other side and 1 x 5 = 5 and that equals 11/15 and you can't reduce any further. Next let's add 3/4 + 2/3 go with the smiley method , there is the smiley fraction, 4 x 3 = 12,start at the left and 3 x 3 = 9 , 2 x 4 = 8 and that equals 1712 and that is an improper fraction which is in it's simplest form. This method also works with a mixed fraction. Let's add the mixed fractions, 21/2 + 31/3. The first thing to do is to go ahead and convert it to an improper fraction. 2 x 2 = 4 + 1 = 5/2, and the other side is 3 x 3 =9 + 1 = 10/3. Next apply the smiley method. 2 x 3 = 6 and start on the left and 5 x 3 = 15 move across, and that is 15, cross multiply again and that becomes 20 which equals 35/6 which is an improper fraction and if you would like you 30 by 6 which equals 5 and 5/6 left over. So the smiley face method works on mixed fractions. Thanks for watching and please subscribe to MooMooMath. We upload a new Math video everyday.

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Learn even more about fractions with this fraction playlist that covers the basics of fractions!!
https://www.youtube.com/playli....st?list=PLurjkZV1ykG

Teacherflix
1 Views · 10 months ago

For free practice Go To: http://[a]www.ilearn.com%2Ffractions[/a]

iLearn provides professionally designed math instruction for all markets, including home, K-12, and college. Our instructional programs combine the best scientifically-designed curriculum with state-of-the art delivery systems. Our specialty is providing easy-to-use, highly effective support, for students who have difficulty learning math. It’s the easiest and fastest way to understand math and master math procedures.

This video is one of over 800 similar lessons from iLearn on math topics ranging from kindergarten through high school math.

• Subscribe to our channel and have access to all of our lessons here on YouTube.
• Share this video with your friends via your favorite social site.

For free access to unlimited online practice and tests, along with free access to these lessons, go to:

http://[a]www.ilearn.com%2Ffractions[/a]

For more information, contact us at: www.ilearn.com
1-877-789-2088 ext. 128 (toll free)

If you prefer to read, rather than watch this video, here’s the transcript:

Title: Writing Fractions from Drawings - Fast And Easy Math Learning Videos

In this lesson you’ll learn to write the fraction that’s shown in a picture.
For example suppose you want to write the fraction shown by the shaded part of this picture. In this case the square is the whole.
And the whole is divided into 4 equal parts.
So 4 is our denominator.
3 of the parts are shaded.
So 3 is our numerator.
The shaded part of the picture shows three-fourths.
Let’s look at another example.
In this case the whole is the triangle.
The triangle has been divided into three parts.
However, the parts are not equal in size, so we can’t write a fraction from this picture. To write a fraction, the figure would have to be divided into equal-size parts.
Let’s look at another example.
In this case the whole is a circle.
Notice that we have two wholes shown.
The wholes are each divided into five equal parts.
So the denominator is 5.
7 of the parts are shaded
So the numerator is 7.
The shaded part of the picture shows seven-fifths.
Let’s look at one last example.
In this case the whole is a rectangle.
Notice that there are 4 wholes shown.
Each whole has been divided into three parts
So the denominator is three.
10 of the parts have been shaded in
So the numerator is 10.
The shaded part of the picture shows ten-thirds. In the remainder of this lesson you’ll write the fraction shown by the shaded part of a picture. Now do the rest on your own.

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https://youtu.be/AksVei-5guU

Teacherflix
9 Views · 10 months ago




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