7th Math Unit 1 Day 7 - 9/7

Last updated over 1 year ago

7 questions

Objective and Summary:
SWBAT identify the value that relates the quantities x and y as the constant of proportionality and recognize it as the unit rate

DK--Donkey Kong loves bananas. He went to the store and saw a sign that said “BANANAS—59 cents per pound!”

a) Donkey Kong wants to stock up on bananas for his banana hoard. How much will 25 pounds of bananas cost him?

CFS
#1: Accurately computes and identifies constant of proportionality
#2: Accurately uses constant of proportionality to extend pattern

MEDIUM Problems

Shoe Sale--Mr. Mancini has noticed that there is competition for his Air Mancinis™, so Mancini Mart is now selling shoes for a discounted price:

a) Paulet decides to buy 9 pairs of Air Mancinis™ for herself and relatives. Find the total cost and explain your reasoning.

CFS
#1: Accurately computes and identifies constant of proportionality
#2: Accurately uses constant of proportionality to extend pattern

Seasoning--Mr. Espinoza's favorite steak recipe uses 3.5 teaspoons of salt to season 2 pounds of steak.

How much salt would he need to season 5 pounds of steak? Explain.

CFS
#1: Accurately computes and identifies constant of proportionality
#2: Accurately uses constant of proportionality to extend pattern

Trips—Each school year, ninth graders at KIPP: Collegiate go on a field trip to the zoo. The table below shows the total cost of the trip for three different years.

a. Is the price the school pays each year proportional to the number of students entering the zoo?

Trips—Each school year, ninth graders at KIPP: Collegiate go on a field trip to the zoo. The table below shows the total cost of the trip for three different years.

b. What would the school pay if 120 students entered the zoo?

Top Chef--Diana woke up and decided she wanted to make omelettes for a family breakfast. She found a recipe that uses 14 eggs for 4 omelettes.

a) What does the constant of proportionality mean in the context of the problem?

"The constant of proportionality means that for each... "

CFS
#1: Accurately computes and identifies constant of proportionality

b) If Diana wanted to make 30 omelettes for the homeroom, how many eggs would she need to buy? Explain how you know.

CFS
#2: Accurately uses constant of proportionality to extend pattern

Good work! You can work on the following... 
Find Constant Proportionality 
Equations for Proportional Relationships 
Graphing Proportional Relationships

Unit Rates Practice

HW Practice:
Long Division

7th Math Unit 1 Day 7 - 9/7

Trips—Each school year, ninth graders at KIPP: Collegiate go on a field trip to the zoo. The table below shows the total cost of the trip for three different years.a. Is the price the school pays each year proportional to the number of students entering the zoo?

Trips—Each school year, ninth graders at KIPP: Collegiate go on a field trip to the zoo. The table below shows the total cost of the trip for three different years.b. What would the school pay if 120 students entered the zoo?

b) If Diana wanted to make 30 omelettes for the homeroom, how many eggs would she need to buy? Explain how you know. CFS#2: Accurately uses constant of proportionality to extend pattern

Trips—Each school year, ninth graders at KIPP: Collegiate go on a field trip to the zoo. The table below shows the total cost of the trip for three different years.

a. Is the price the school pays each year proportional to the number of students entering the zoo?

Trips—Each school year, ninth graders at KIPP: Collegiate go on a field trip to the zoo. The table below shows the total cost of the trip for three different years.

b. What would the school pay if 120 students entered the zoo?

b) If Diana wanted to make 30 omelettes for the homeroom, how many eggs would she need to buy? Explain how you know.

CFS
#2: Accurately uses constant of proportionality to extend pattern