7th Math 3.16

Last updated over 2 years ago
6 questions

Math - [Lesson 3.16]

Teacher: Mr. Kovalik (408) 314-1092

Objective and Summary:
SWBAT recognize π as the ratio of circumference to diameter of any circle and use the formula C=πD to solve various problems
1

Art--Adam wants to find the distance around this drawing of a circle. It has a radius of 2 cm.
He says the answer must be 2π cm.
Do you agree or disagree with him? Why?

"I (agree / disagree) with Adam because..."

Pi symbol for copy and paste: π

CFS:
#1: Writes the appropriate formula
#2: Accurately substitutes values to calculate

1

Calculate 1--What is the circumference of this circle? Leave your answer in terms of pi.

"The circumference is..."

Pi symbol for copy and paste: π

CFS:
#1: Writes the appropriate formula
#2: Accurately substitutes values to calculate

1

Calculate 2--What is the circumference of this circle? Use 3.14 to approximate π.

"The circumference is..."

Pi symbol for copy and paste: π

CFS:
#1: Writes the appropriate formula
#2: Accurately substitutes values to calculate

MEDIUM PROBLEMS
1

Math+Art--Mr. Mancini wants to see how much you know about circles. He tells you to draw then find the distance around a circle that has a radius of 4.5 inches.

"The circumference is..."

Pi symbol for copy and paste: π

CFS:
#1: Writes the appropriate formula
#2: Accurately substitutes values to calculate

1

SPICY--Try if you have time (optional)

Construction--Frodo's uncle built a swimming pool in the backyard. Frodo says the distance around the pool is 120 feet. Is he correct? Prove him right or wrong.
(Hint: you are looking for the total of the blue and green lines)

"I think he is (correct / incorrect) because..."

Pi symbol for copy and paste: π

CFS:
#1: Writes the appropriate formula
#2: Accurately substitutes values to calculate

4

Circular--Ms. Paul asked you to make a diagram for science that includes a circle with a radius of 7 centimeters.
a) Label the SYW section appropriately.
b) Find the circumference of the circle in your diagram. Leave your answer in terms of π.

"The circumference is..."

Pi symbol for copy and paste: π

**You MUST SYW in formative for credit**

CFS:
#1: Writes the appropriate formula
#2: Accurately substitutes values to calculate