adding-fractions-shortcut-smiley-face-method

Welcome to Clip from Spiral logo

Interactive video lesson plan for: Adding Fractions Shortcut- Smiley Face Method

Activity overview:

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.

-~-~~-~~~-~~-~-
Please watch: "Study Skills Teacher's Secret Guide to your Best Grades"
https://www.youtube.com/watch?v=f3bsg8gaSbw
-~-~~-~~~-~~-~-
Learn even more about fractions with this fraction playlist that covers the basics of fractions!!
https://www.youtube.com/playlist?list=PLurjkZV1ykGa0cb4iAUs2FZLS-ClkRHmq

Tagged under: fraction,adding fractions,shortcuts fractions,Mathematics (Field Of Study),moomoomath,improper fraction,adding mixed fractions

Clip makes it super easy to turn any public video into a formative assessment activity in your classroom.

Add multiple choice quizzes, questions and browse hundreds of approved, video lesson ideas for Clip

Make YouTube one of your teaching aids - Works perfectly with lesson micro-teaching plans

Play this activity

1. Students enter a simple code

2. You play the video

3. The students comment

4. You review and reflect

* Whiteboard required for teacher-paced activities

Share on:

Share Adding Fractions  Shortcut- Smiley Face Method on Google+ Share Adding Fractions  Shortcut- Smiley Face Method on Twitter Share Adding Fractions  Shortcut- Smiley Face Method on Facebook Pin Adding Fractions  Shortcut- Smiley Face Method Email Adding Fractions  Shortcut- Smiley Face Method

Ready to see what else Spiral logo can do?

With four apps, each designed around existing classroom activities, Spiral gives you the power to do formative assessment with anything you teach.

Quickfire

Carry out a quickfire formative assessment to see what the whole class is thinking

Discuss

Create interactive presentations to spark creativity in class

Team Up

Student teams can create and share collaborative presentations from linked devices

Clip

Turn any public video into a live chat with questions and quizzes

1000s of teachers use Spiral to deliver awesome, engaging activities that capture students' understanding during lessons.

Now it's your turn Sign up

Spiral Reviews by Teachers and Digital Learning Coaches

Spiral
Review of Spiral by teacher: Kathryn Laster @kklaster

Tried out the canvas response option on @SpiralEducation & it's so awesome! Add text or drawings AND annotate an image! #R10tech

Spiral
Review of Spiral by teacher: Room 220 Math Stars @3rdgradeBCE

Using @SpiralEducation in class for math review. Student approved! Thumbs up! Thanks.

Spiral
Review of Spiral by teacher: Miss Ord @ordmiss

Absolutely amazing collaboration from year 10 today. 100% engagement and constant smiles from all #lovetsla #spiral

Spiral
Review of Spiral by teacher: Adam J. Stryker @strykerstennis

Students show better Interpersonal Writing skills than Speaking via @SpiralEducation Great #data #langchat folks!

Spiral
Review of Spiral by teacher: Dr Ayla Göl @iladylayla

A good tool for supporting active #learning.

Spiral
Review of Spiral by teacher: Brett Erenberg @BrettErenberg

The Team Up app is unlike anything I have ever seen. You left NOTHING out! So impressed!

Get the Clip Chrome Extension & Create Video Lessons in Seconds

Add Clip to Chrome