Bubble, Bubble, Measuring Circles Is No Trouble

Bubble 1: Materials to Gather:
Dish Soap (like Ivory)
washable paint or tempra powder
straws (1 per child)
bowls (cereal sized)
colored paper (lighter colors recommended)(2 pieces per child)
Signs that say "Circumference" and "Diameter" and "Radius"


Bubble 2: Getting Ready:
Mix dish soap and paint into several bowls. Stir well.

Bubble 3 Art Part:
Demonstrate for students how to do the art part of this activity:
~Gently blow through a straw into a bowl of the colored soap mixture creating a mound of bubbles in the bowl.
~Take your paper and tap the front side onto the top of the bubbles, thereby transferring the circles onto your paper. The paper should have lots of circular patterns on it from the popping of the bubbles.
~Show the students the results using the document camera.
~Ask the students which bubble shape is the biggest and the smallest.
~Explain that they are going to get to make great art work that they will get to use to measure with in few minutes.
~Let each student complete their bubble prints.
~Allow them to dry for a few minutes.
~Ask students to find their largest bubble and their smallest bubble.

Bubble 4 Lesson:
~Hang up the circumference, radius, and diameter signs
~Ask the students if anyone knows what any of these mean
~Allow for responses
~Tell the children that we are going to use our bubble art to learn what these things mean.
~Explain Circumference, radius, and diameter
~Practice measuring these things using your projected image.
~Ask students to work with a partner to measure the circumference, radius, and diameter of their largest and smallest bubbles.

Bubble 5 Assessment:
~Ask students to create a mini poster showcasing the meanings of Circumference, Radius and Diameter.
~Ask them to create a chart that displays the