Lær at dividere: Videoen introducerer division. Der gennemgås flere eksempler på, hvorledes man beregner division vha. trappemetoden.

Husk at se flere videoer på vores kanal: https://www.youtube.com/channe....l/UCYHzuEfJMIIcZAuFp

#division
#sofaskolen
#læratdividere

Oplever du også sommetider bøvl med division eller syntes du division er svært?
I denne video vil jeg vise jer en simpel og nem metode til netop at dividere. Den kan hedde forskellige ting, men er nok mest kendt som Ballon metoden eller slikkepind metoden.

Håber det giver mening.

Ballonmetoden er en super god og meget let måde at dividere på. Lær metoden ved at se denne video.

Hvordan kan man dividere med store tal, altså tal som går ud over 1-10-tabellen? Se svaret i videoen :)

De tre forskellige metoder af division, som man oftest arbejder med i Folkeskolen.

Metode 1. "Den lange"
Long division er lige præcis det. Langt!
Det er fordi den laver ALLE trin, og viser det med udregning. HVER gang man finder en rest, så viser man det ved et minusstykke.
Fordelen er, at man bliver rigtig god til at overskue alle trinene og at man nemt kan se sine fejl efterfølgende.
Ulempen er selvfølgelig at det tager enoooormt lang tid at lave.
Appen Long Division Touch træner denne metode:
https://itunes.apple.com/dk/app/long-division-touch/id574226151?l=da&mt=8

2. Metode er den populære "Slikkepindsmetode".
Denne er blevet meget populær de sidste par år, og dens overskuelighed gør, at den ofte bliver den som eleverne har nemmest ved.
Fordelen er selvfølgelig dette, hvor ulempen er, at man bliver nød til at kunne udregne 'resten' i hovedet for at kunne føre den ned til næste horisontale række.

3. metode er ikke så brugt, men deler førstepladsen med metode to i overskuelighed.
Den er renskuret for alt for mange regnestykker, og resten noteres vha. en overførsel som eleven kender fra plus og minusstykker.
Den kan enddog bruges i udskolingen når eleverne skal til at reducere større algebra udsagn.

Der er ingen af de tre metoder som er "mere rigtig" end de andre.
Vælg den som du har nemmest ved - og hold dig til den.
Og husk endelig at øve den og holde den ved lige - også selvom det er ferie ;)

0:00 Præsentation
0:15 1. Metode 'Den Lange Division'
2:38 2. Metode 'Slikkepind / Ballon Metoden'
4:06 3. Metode 'Brøken'

En introduktion til division, Hvordan dividere man.

Gratis matematik opgaver til video'en:
http://matematikerlet.dk/opgav....er/division/Introduk
Facitliste til video'en:
http://matematikerlet.dk/opgav....er/division/Introduk


#matematikerlet
#hjælptilmatematik
#gratismatematikopgaver
#dividere

En gennemgang af den traditionelle måde at dividere på.

Division med trappen.
Det er en fordel at dividere med trappen, hvis man arbejder mere flercifrede stykker og skal holde styr på sine rester.

NextGurukul is India's leading online K-12 community. Here students, parents, teachers, principals and trustees can connect, learn and share knowledge with each other.

It has a vast repository of summaries of concepts of all subjects, academic articles, ideas for projects and hands-on activities, videos and all the latest updates from the education sector. NextGurukul also provides a forum where students can get quick answers to all their doubts.
You can also communicate to us via Facebook by liking our official Facebook page.
Like Us on Facebook: https://goo.gl/41FQWg
Connect with us on G+: https://goo.gl/MYceSn

Hope you guys enjoy my video! Please like and subscribe for more exciting, fun, and easy Tagalog Math Tutorials!
Also Please like and share my FB page. Thanks!
MathSci Hub by Kero Cleto Cabico
https://www.facebook.com/Maths....ci-Hub-by-Kero-62197

In this video you will learn the three types of fraction and its picture representation. This K-12 Educational video tutorial is good for both kids and adult. Everyone can watch my educational video and it's for free so you can learn Math tricks and shortcuts on how to compute and solve Math Problems. I will tackle basic and elementary Math for your better understanding. I can also share some study habits to help you ace your Math test. I'll teach you mental math tricks, fast and easy calculation, and many more.
Let's make learning Math Lessons easier and exciting. Elementary Math, Basic Math, Math 101. Math as easy as 123. Matuto ng Mathematics sa pinakamadaling paraan TAGALOG tutorial. Best Math tutorial with lots of examples and drills to practice. Math for everyday life. Achieve learning outcomes that are above average in mathematics by instructing students in a clear, concise and fun way. Top your exam with this easy, educational, fun, and exciting way of learning Math TAGALOG version. K-12 Math in fun and easy ways. Math wonders. Math shortcuts. Mental Math. High School Math. Mag-aral ng Math sa bahay. Pano gumaling sa Math sa mabilis na paraan .

Presenter: Elizabeth Peyser, Curriculum Associates

Number lines are a lovely sense-making model from early elementary to secondary mathematics, but often the construction and understanding are a bit elusive to students and educators! Join us for hands-on learning to build and use this important tool. Participants will experience and practice the strategies to add, subtract, multiply,and divide fractions using number lines. Digital tools and hands-on manipulatives will be explored.

Fractions are one of the most challenging topics in math, but they are also critical for students to understand to be successful in algebra. One way to help students understand fractions and feel comfortable adding them is by using manipulatives. Sarah Powell from UT shows how you can use area model manipulatives to teach students how to add fractions that have like denominators.
This video is one of 30 videos all targeting teaching fractions. This video is also part of Project STAIR, a research-based resource for parents and teachers who have children that are struggling in math.
If you have ideas about how we can improve the videos, or if you know of something you would like us to make a video about, please complete our survey here:
https://utexas.qualtrics.com/j....fe/form/SV_exPGEJZ0s

If you liked the video or have more questions, please like the video and subscribe for more math videos.

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: Improper Fractions as Mixed Numbers Without Number Line

Here's a fast way for changing an improper fraction into a mixed number. Let's start with the improper fraction seven-thirds. To find out how many whole units seven-thirds makes, divide by the number of parts in each whole unit.
How many whole units does seven-thirds make? Two.
And how many parts are left over? One.
Remember to write the left-over parts as a fraction
Let's look at a few more problems before you try some on your own. We start with the improper fraction five-fourths.
Divide by the number of parts in each whole unit.
How many whole units does five-fourths make? One.
And how many parts are left over? One.
Remember to write the left-over parts as a fraction.
This is the final problem before trying a few on your own. We start with the improper fraction seventeen-sixths.
Divide by the number of parts in each whole unit.
How many whole units does seventeen-sixths make? Two.
And how many parts are left over? Five.

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

https://youtu.be/c8sjHF0Ozpo

A look at finding the greatest common factor by using t-charts. View more lessons: http://www.educreations.com/yt/2814053/?ref=ytd

Go Here For Free Practice: 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: Rewriting Fractions with Common Denominator: One a Factor of the Other

You already know how to rewrite fractions with a different denominator using the product of the denominators as the common denominator. In this lesson, you’ll learn another method of finding a common denominator that can be used occasionally.
Here’s an example. One-half and three-eighths. In this case, notice that the denominator of the first fraction, 2, is a factor of the second denominator, 8.
Let’s look at what happens when we add these fractions on the number line.
We can add these on the number line for halves by putting them back to back like this.
We see that the end of the combined fractions does not fall on one of the lines for a half.
But now let’s add these on the other number line.
Now, the end of the combined fractions does fall on one of the lines for an eighth.
This means that we can add these fractions using eighths, so eight is a common denominator for these two fractions.
When a common denominator is one of the denominators for one of the fractions, there is no need to rewrite one of the fractions. In this case, we don’t need to rewrite three eighths. We do need to rewrite the other fraction like this.
So this fraction becomes four-eighths.
Another example. Four-thirds and five-sixths. In this example, 3 is a factor of 6, so the common denominator for these fractions is 6. Because the common denominator is 6, we don’t need to rewrite the fraction five-sixths, but we do need to rewrite four-thirds with the common denominator of 6.
So, now we have eight-sixths and five-sixths.
Another example. In this case, the first denominator, 3, is not a factor of the other denominator, 8. This means the common denominator is not one of the denominators of the two fractions. One common denominator is the product of 3 and 8, or 24. In this case, both fractions would need to be rewritten with a common denominator of 24.
This gives us eight twenty-fourths and 18 twenty-fourths.
Last example. Five-fourths and nine-sixteenths. Here, four is a factor of 16, so the common denominator is 16. That means nine-sixteenths is not rewritten, but five-fourths must be rewritten as an equivalent fraction with a denominator of 16.

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

https://youtu.be/GqbABpNPI_Q

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: Improper Fractions as Mixed Numbers With Number Line

In this lesson, you will learn how to rewrite an improper fraction as a mixed number. Let's start with the improper fraction seven-thirds.
How many whole units does seven-thirds make? Two.
And how many parts are left over? One.
Write the left over part as a fraction.
Seven-thirds can be rewritten as two and one-third.
Let's look at a few more examples. We start with the improper fraction fourteen-thirds.
How many whole units does fourteen-thirds make? Four.
And two parts are left over.
Write the left over part as a fraction.
Fourteen-thirds can be rewritten as four and two-thirds.
Let's take a look at one final example. We start with the improper fraction three-halves.
How many whole units does three-halves make? One.
And one part is left over. Remember to write the left over part as a fraction.
Three-halves can be rewritten as one and one-half.

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

https://youtu.be/G-ZaNe5TsXk

Description