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I live in New York

I teach 3rd grade

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Rhonda

I live in New Jersey

I teach 6th grade literacy

I am passionate about my students becoming lifelong readers and writers

Beth

I live in Michigan

I teach 3rd grade

I am an enthusiastic teacher and techie, and a mom of three boys

Erin

I live in Michigan

I teach 2nd grade

I am a Tweet loving, technology integrating, mom of two with a passion for classroom design!

John

I live in New York

I teach writing for grades 5-8

I am a sharpener of minds who keeps students' thinking on point

Genia

I live in Michigan

I teach third grade

I am a teacher who loves sparking the curiosity that ignites a child's learning

Kriscia

I live in California

I teach 2nd and 3rd grades

I am an eager educator, on the hunt to find the brilliance in all

Brian

I live in North Carolina

I teach kindergarten

I am a kindergarten teacher who takes creating a fun, engaging classroom seriously

Lindsey

I live in Illinois

I teach 4th grade

I am a theme-weaving, bargain-hunting, creative public educator

Shari

I live in Idaho

I teach kindergarten

I am a wife, mom, and home chef who loves cooking up ways to make learning fun in school

Christy

I live in New York

I teach K-5 technology

I am a proud supporter of American public education and a tech integrationist

Amanda

I live in Illinois

I teach 1st and 2nd grades

I am a jewelry-making, pet-loving, runner, crafter, and bilingual teacher

Allie

I live in Nevada

I teach kindergarten

I am a loving, enthusiastic teacher whose goal is to make learning exciting for every child

Circumference + Bubbles = Too Much Fun!

By Stacey Burt on March 9, 2010


  

Often teaching circumference can be a bit, well, boring. This time of year I try to incorporate as many manipulatives in math as possible. So when it comes to teaching circumference, I use bubble solution, straws, and rulers to ramp up the process.


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This activity as been around for a long time; however, I incorporate modes of central tendency as a review with this activity. All your students will need is something to record data on (or provide a lab sheet for them), calculator, and pencil. Here are the basic steps my students follow:

1. Completely clear desk surface.

2. Pass out straws, rulers, and pour about a tablespoon of bubble solution on each student’s desk.

3. Remind students to dip the straw in the solution as well before gently blowing air into the bubble solution on their desks.

4. Students should blow until a bubble forms and pops. When the bubble pops it will leave a ring on the surface of the desk.

5. Students will have to estimate the center of the circle and then use the ruler to either estimate the diameter or radius of the circle.

6. Record data (diameter or radius) for 10-15 bubbles.

7. Students should then return to data and make the calculations for circumference for each circle.

8. After completing the calculations, students can then calculate mean, median, mode, and range for the data set.

Challenge: For additional fun, have the students try blowing bubbles inside of bubbles and measuring the diameters and circumferences.

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I hope you have fun with this activity. I know your students will, and what a great way to review before state testing. Even “big kids” love to blow bubbles!

All the best this week-

Stacey

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