Wednesday, March 30, 2016

Base 10! Finding Hidden Partners

We have been busy, busy with base 10!  For any number 1-9, find the number that makes 10 when added to the given number.  (Sound familiar?  CCSS K.OA.4)  We have needed a good deal of practice on this skill so I have tried to incorporate activities that are a little more fun.

Here is a snapshot of 2 of my kiddos playing "Hidden Partners."  One person breaks their stick of 10 in half and hides one part behind his/her back.  The other student looks at the given part and tries to guess the hidden part so that they equal 10 when put together.  I have really encouraged "Math Talk" with this because I want to hear my students verbalizing their part-part-whole as well as the number sentence.  This helps us with addition too! :)
{Click to play a 10 second video clip.}
A video posted by Mary Lirette (@marylirette) on

"Rainbow Bonds" have also been a huge hit with our morning work drawers this month.  The station activity is part of my Clovers, Rainbows and Leprechauns! Oh My! ELA and Math pack.

Here are some great websites for free practice on the computer:
Combine balls to make 10
Enter the number that is empty to build 10
Find number pairs that equal 10 (must be touching!)
I hope these ideas help you with base 10 practice in your classroom! :)

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