On Friday, students were addressed in the Morning Message as "Meticulous Measurers." They read on to learn that the word "meticulous" means "careful." We have measured objects in our room--and a few at home--in inches, feet, yards, meters, and centimeters. Students are learning the business of careful measuring. They are learning to slow themselves down and appreciate the precision required in actually measuring as well as the reasonableness that a good estimate should have. Students are showing evidence of visualizing units of measurement in their head.
I know this because I ask them to estimate before they measure anything and then, they can bet that I'll ask "why does that estimate make sense?" or "how do you know that's a good estimate?" I gently nod and offer a smile as I watch the wheels turning in their head, putting together an explanation of the fact that they visualized "what a ruler looks like" to help them make a thoughtful guess. These kinds of justifications of mathematical thinking are challenging for our second graders to work through and verbalize, but they are making gains in doing so.
Enjoy some pictures of our busy classroom during math!
Fitted with a meter-long link belt and a ninja meter stick
Visualizing and solidifying understanding of how long a meter really is using links
Discovery: 1 meter is 30 links long
Post-measuring bonanza
(They had just captured me and added to their list "Ms. Baier: About 2 meters tall")
Lots of measuring goin' on 'round our house!!
ReplyDelete:) Lots of measuring goin' on in that classroom of ours!
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