Measurement

Last week KB started exploring the idea of measurement.

In kindergarten the focus of measuremnet is to build mathematical language related to weight, length, and volume. Words such as: balance, heavy, light, tall, short, big, small, empty, full, more, and less are words that we are learning together and using in different areas as we explore comparisons in our play.

Last week students played the game “I am bigger!”. Using number cards each player flipped a card over, then students compared the two cards they have.

As a class we came up with examples of things that might be “heavy” or “light”. For this exercise we pretended that we were going to have to pick up the object and that would help us determine which category the object went in. We drew our ideas:

Students determined things such as: trees, the earth, a body, and giraffes would be considered heavy

Oppositely, students determined that things such as: leaves, strawberries, balloons, and caterpillars would be considered light objects.

Today, we explored the idea that mathematicians measure not only the weight of things, but also the length. Using non-standard tools like links, blocks, and pencils students set out to measure things around the classroom. Not only did they measure the lenth or height of things, but they also recorded their findings in their math notebooks and later shared their findings with a friend.

J. and I. sharing what they measured, how long it was, and what tool they used to measure.

I. demonstrates his ability to count to 20 after measuring the book shelf.

K. explores using a more standard tool of measurement by reading the number and the markings on the meter stick. He demonstrates that he can read the number 93.

S. shows her big knowledge of numbers by measuring the long edge of the table and counting the links to see how many there are.

E. measured different books and found out that not all books are the same size!

K. was extremely proud of his discovery that the diameter and the perimeter of the our circular chair were the same measurement- 48! He also recorded the number with proper formation and a drew a picture that matched what he measured.

In my next post I will write about how were using the idea of balance and big and small to make good decisions about what goes into our class compost and how our language around capacity helps us in the juice shop!

 

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