Jelly Bean Math
The countdown to Easter (and the jump testing season) has begun! Today, I planned a quick piddling projection amongst a grouping of 10 2nd graders that was super engaging together with a bully agency to practise estimating, counting, comparison numbers together with early on partitioning concepts.
It all started amongst piddling Dixie Cups of jelly beans (I used these ones). I set the kids inward iii groups. I gave each grouping a piddling loving cup of jelly beans together with posted these directions on the SMART board.
| Want to endeavour this amongst your students? Grab these directions from Google Drive. |
Two of my groups had iii kids inward them together with 1 grouping had four kids. I gave the groups amongst iii kids 45 jelly beans together with the grouping amongst four kids lx jelly beans.
I conduct maintain actually been working on independence amongst these kids together with tried my best to pace dorsum together with uncovering together with non conduct maintain over!
I saw thus many things that made my math pump happy!
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| Kids organizing together with recording estimates |
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| One grouping organized all their beans past times coloring together with thus decided it would live on much to a greater extent than efficient to set them inward groups of 10. The other groups went for groups of 10 from the acquire go. |
When each grouping had figured out how much they had, it was quite tardily for them to figure out how much they were off by. These kids are thus flexible together with fluent amongst double digit subtraction!
Dividing the jelly beans as betwixt each grouping fellow member was fun to watch. Each grouping started past times giving everyone 10. Two of the groups were convinced that at that topographic point would live on a leftover edible bean that would conduct maintain to live on cutting up. The rationale was that because fifteen is odd, at that topographic point volition live on a leftover. They were surprised to uncovering that at that topographic point was none left! The primary strategy for sharing out the beans was to scope each individual 10 together with thus portion them out 1 past times 1 until they were gone.
This role took a full of xiv minutes (including a few minutes of eating the beans!)
Then I pulled the grouping together together with had each grouping portion out how many beans their grouping got together with how many each individual ended upward with. There was only about outcry over 1 grouping getting 60, but it provoked an interesting give-and-take close how each nipper ended upward amongst 15.
I thus presented them amongst this problem."There are 10 2nd graders inward this room together with I gave y'all each fifteen jelly beans. How many jelly beans did I scope out?" I gave kids a infinitesimal to mean value at the circle thus sent them off to catch a white board together with demo me what they knew. I chose this occupation because concluding wintertime when I was reading Children's Mathematics I became really intentional close making certain kids conduct maintain the gamble to solve Base 10 Story Problems. Since 10 kids were inward this group, I thought it would live on interesting to run across who used base of operations 10 noesis to solve this problem. I gave out 10 groups of fifteen but only about kids used the thought of that existence the same as fifteen groups of 10.
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| This pupil used base of operations 10 noesis to solve the occupation (and the distributive property!) |
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| Another pupil who used base of operations 10 knowledge |
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| This pupil added 45+45+60. They used the set out of jelly beans each grouping had. |
Total fourth dimension for this was 25 minutes. We had a lot of fun, the kids got only about expert practise together with I got to acquire only about novel things close what strategies my students have. How are y'all working on estimating together with counting inward your classroom? Want to endeavour this out? Grab the directions from Google Drive!
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