## Transcript

2020-2021 REPLAY

A. Bouchard

Term 2

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Snapshot of Topics

• Multiply Fractions
• Divide Fractions
• Order of Operations
• Coordinate Planes

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1

Multiply Fractions

Tips

Click on anything that moves!

try it!

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The roller skate icon links you to a GAME to play! 🎮

The camera icon give you notes or a SNAPSHOT of info 📷

The headphones icon will link to a music video on the topic 🎧🎵

📄

This is where you can check your answers. Make sure to solve first, don't spoil it!

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Multiplying Fractions

..is no problem

Top times top
and bottom times bottom

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Multiplying Fractions

How do you multiply ¾ x 5?

There are 3 ways:

¾ + ¾ + ¾ + ¾ + ¾ = 15/4

(add the numerators; keep the denominator the same)

Using a model

+ + + + = 15 fourths

Multiplying across numerators and denominators

3 x 5 = 15

4 1 4

----Put the whole number (5) over a denominator of 1

Don’t forget to simplify IMPROPER fractions by dividing: 15/4=3 ¾

Game On!

two truths and a lie

1. 6 X 7/12 IS 6 1/3
2. 4/5 X 10 IS 8
3. 14 X 2/3 IS 27 1/3

CAN YOU SPOT THE LIE?

Multiplying Fractions is NO PROBLEM!

TOP times TOP

And BOTTOM times BOTTOM

Don't forget to SIMPLIFY

1. Split numerator and denominator into factors.

2. Cross out like factors on top and bottom

3. Keep the other factor

1. 1. lie! 6 X 7/12 IS 6 1/2
2. 2. Truth! 4/5 X 10 IS 8
3. 3. Truth! 14 X 2/3 IS 27 1/3

2

Divide Fractions

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DIVIDE FRACTIONS

KEEP

CHANGE
FLIP

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Steps for Dividing Fractions: KCF

*Always put a 1 under a whole number 818/11)

K: Keep the 1st fraction

C: Change the ➗ sign to x

F: Flip the 2nd fraction

⭐To make a whole number a fraction, put a 1 under it!

Example:

Game On!

Fact or Fib?

One third divided by 6 is one eighteenth.

FACT!

1/3 ➗ 6 = 1/3 X 1/6 = 1/18

🥇

Divide By Fractions with Models

Say you have one half of a pizza. You want to split it among you and 3 of your friends. How much of the pizza will each of you get? Draw a picture first, then choose an answer below:

a. 8 pizzas

b. 181/8 pizza

c. 6 pizzas

d. 161/6 pizza

Think about the pizza example, if you start with a fraction, each person must get a fraction!

1/2 ➗ 4 = 1/8 so option B!

🎤Sing it with me!

When dividing fractions and a whole over 1
Keep, change, flip is so much fun
Then the answer must be simplified

Keep 1/2

Change ➗ to ✖

Flip 4 into 1/4

1/2 x 1/4 = 1/8

1/8 is simplified because it is a UNIT FRACTION: has a 1 in the numerator. 🧙‍♂️

FACT!

1/3 ➗ 6 = 1/3 X 1/6 = 1/18

🥇

3

Order of

Operations

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Order of Operations

If there is more than 1 operation (✖➗➕➖), you must follow GEMDAS

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G: Grouping symbols first ( ) [ ] { }

E: Exponents (not taught in 5th grade)

MD: Multiply and Divide from LEFT to RIGHT

AS: Add and Subtract from LEFT to RIGHT

(9 x 3 ) - 2 + 4 There are (parentheses), so solve (9x3) first

27 - 2 +4 Bring down the rest of the expression,

25 + 4 Adding and subtracting Left to Right, so subtract next to get 25

Game On!

4

Coordinate Planes

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Coordinate Planes

Graphing data and ordered pairs

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Game On!

Check! -->

Scroll down to check answer ✅

 Mugs Tablespoons 1 3 3 9 6 18 9 27

(1,3)

(3,9)

(6,18)

(9,27) are some of the ordered pairs

Xavier would need 27 tablespoons.

Convert Graphs to Input Output Tables

Rescue Mission Jr: Coordinate Grid

Coordinate Grid Reasoning

Replay Recap

ORIGIN = (0,0)

KINDA LOOKS LIKE A FACE, RIGHT?

Joke of the day

5 out of 4 people have trouble with fractions.

🤔😁

💪Good mathematicians know...

When dividing fractions and a whole over one,

Keep, Change, Flip is so much FUN