Measuring Circles and Finding Pi: Area and Radius Square Inquiry Activity

Subjects
Resource Types
Common Core Standards
Product Rating
Not yet rated
File Type
PDF (Acrobat) Document File
Be sure that you have an application to open this file type before downloading and/or purchasing.
6.97 MB   |   15+ pages

PRODUCT DESCRIPTION

Investigate the formula for calculating the area of a circle using cereal O’s to measure everyday circular objects. This full lesson plan begins with a guided inquiry and then has students work in groups to investigate the relationship between a circle’s area and the area of a square with sides the length of the radius. In a class discussion, you’ll calculate pi by averaging the ratios of everyone’s measurements. Reflection and extension ideas are included.

This activity can either be an introduction to the formula for finding the area of a circle, or it can be used to help students develop a deeper understanding of the formula after they’ve learned it.

Prior to beginning this activity, students should know vocabulary for the basic parts of a circle, including circumference, center, diameter, and radius. They should be very familiar with the concept of area, understand that the area of a square is equal to the square of its sides, and have experience subdividing polygons into rectangles and triangles to develop formulas for area.

A full, free preview is available to help you decide if this activity will be a good fit for your classroom.

This download is one pdf file that includes:
★Teacher Notes and scripted Lesson Plan
★2 Focus Questions pages
★3 Guided Investigation student pages
★Investigation Instructions Poster
★Blank Class Data Chart
★2 Extra Practice pages with answer keys
★1,000 Digits of Pi Poster
★Investigation Photos page
★My unique Collaborative License that grants you permission to share printed copies of this resource with up to four other members of your regular teaching team without purchasing additional licenses!

CCSS 7.G.B.4
TEKS 7.8C
VA SOL 6.10b (2009)
VA SOL 6.7 a,b (2016)

***************************************************************************
Let’s connect! Follow me on Pinterest and Instagram!

If you have any questions, I’d love to hear from you! Since I am out of the classroom this year, I am also looking to connect with teachers who are interested in testing my products and taking pictures of them in action in exchange for free or discounted products. Send me an email if you’re interested!

Kristin
kjelementaryinquiry@gmail.com

***************************************************************************

You might also like:
Measuring Circles and Finding Pi: Circumference and Diameter Inquiry Activity

Last Minute, No-Prep Pi Day Activity Ideas

Egg Coloring Inquiry: Student Designed Controlled Experiments

***************************************************************************

Earn TPT Credit!
Please let me know what you think of this product by leaving feedback!

Click the My TPT drop down menu at the top right of your screen (make sure you’re logged in!). Then click on My Purchases. Look for the green thumbs up Provide Feedback icon. Every time you leave feedback on a paid item, TPT gives you credit towards future purchases!
Total Pages
15+
Included
Teaching Duration
90 Minutes

Average Ratings

N/A
Overall Quality:
N/A
Accuracy:
N/A
Practicality:
N/A
Thoroughness:
N/A
Creativity:
N/A
Clarity:
N/A
Total:
0 ratings
PRODUCT QUESTIONS AND ANSWERS:
\$3.00
User Rating: 4.0/4.0
(176 Followers)
\$3.00