Acceleration to Algebra Unit 1.2. MONDAY 8/18 Lesson 11

Acceleration to AlgebraUnit 1.2

MONDAY 8/18Lesson 11

Turn to Page 52

• Look at Example 1. • Can you create your own way to solve this problem? • HINT: Minutes can become hours by putting it over 60 minutes!

Example 1:

• Izzy 2¼ miles = 9/4 15/60 hour = 1/4

When you divide 9/4 by 1/4 you get 9!

• Julia 3 3/4 miles = 15/4 25/60 hour = 5/12

When you divide 15/4 by 5/12 you get 9!

ANSWER: Both girls are EQUAL. Their unit rate was 9 miles / hour.

PRACTICE

• Complete Exercises 1, 2, & 3

Turn to Page 54

• We will complete #’s 4 & 5 together

HOMEWORKPg. 54 # 1,2, & 3

Take out your home Pg. 54 # 1,2, & 3

And discuss your answers with your shoulder partner. If you got something wrong, figure out why. If you can’t, we

will discuss it as a class.

TUESDAY 8/19Lessons 12 & 13

Turn to Pg. 55

• Change the following:• 14 feet 8 inches 10 ft 6 in• 5 feet 6 inches 4 ft 8 in• $100 $50

• Complete the problem using the changes.

ANSWER: NO!! She is $2.50 short to purchase the tiles.

Turn to Pg. 58

• Together we will do Example 1.• FIRST find the constant rate (k).• Remember:

• To find y we must multiply• To find x we must divide

Turn to Pg. 59

• We will do Example 2 together. • We can use a tape diagram to help us:• Order 1 – sausage = 1/4

• Order 3 – pepperoni = 1/3

HOMEWORKPg. 57 # 1 & 4 (create a table with flour as x and dinner rolls as y; use constants)

Pg. 61 # 1

Wednesday 8/20Lesson 14

Turn to Pg. 63

• Together we will complete Ex. 1 & 2. Make sure to use tape diagrams to help explain your answers.• Ex 1• A) = 30• B) = $22

• Ex 2 = 21,999

10 10 10 10

11 11 11

Turn to Pg. 64

• Together we are going to do Ex. 3 & 4

• Ex 3:

$2400 + 800 = $3200

$3200 – $640 = $2560Profit $2560 – $2400 = $160 profit! 640

800 800 800

640 640 640 640 640

Try the following problems by yourself!

1) A bicycle shop advertised all mountain bikes priced at a 1/3 discount.a) What is the amount of the discount if the bicycle originally costs $327?b) What is the discount price of the bicycle?c) Explain how you found your solution to part B.

2) A hand-held digital music player was marked down by 1/4 of the original price. a) If the sales price is $128.00, what is the original price?b) If the item was marked up by 1/2 before it was placed on the sales floor, what was

the price that the store paid for the digital player? c) What is the difference between the discount price and the price that the store paid

for the digital player?

HOMEWORKPg. 65 # 1-7

THURSDAY 8/21Lesson 15

Turn to Pg. 67

• Look at Example 1• With your shoulder partner, determine if you can find Sam’s mother’s

average rate for the entire race based on her previous race times.

Turn to Pg. 68-69

• Complete Example 2

Turn to Pg. 71• Complete #’s 2 & 3• When you are finished, come to the front of the class to check your

answers. • If you got them both correct, begin your TEST REVIEW/HOMEWORK:• Pg 56 # 1• Pg 60 # 1• Pg 61 # 2• Pg 66 # 6 & 7• Pg 70 # 1• Pg 72 # 4

FRIDAY 8/22TEST 1.2