SWBAT recognize as the ratio of circumference to diameter of any circle
SWBAT calculate missing values of a circle using the formula, C=πD
CFS:
#1: Writes the appropriate formula
#2: Accurately substitutes values to calculate
1 point
1
Question 1
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 point
1
Question 2
2.
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
1 point
1
Question 3
3.
Calculate 2--What is the circumference of this circle? Use 3.14 to approximate π.
"The circumference is..."
1 point
1
Question 4
4.
Calculate 2--What is the circumference of this circle? Leave your answer in terms of π.
"The circumference is..."
1 point
1
Question 5
5.
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
1 point
1
Question 6
6.
Sense-Making—The figure shows a circle within a square Find the circumference of the circle.
"The circumference is..."
Pi symbol for copy and paste: π
1 point
1
Question 7
7.
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
4 points
4
Question 8
8.
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.