A2 cont. Even that sequence is generated several diff ways.
So much fun math-y stuff to unpack!
I learned about "lazy caterer" numbers, number of regions created by intersecting lines, and Floyd's triangle (+ how to generate it w/Python coding)
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Phew! So glad my last name has 8 letters. I could have really missed out on something special... #ElemMathChat

A3: If you haven’t experienced Splat!, you haven’t had enough fun in your life! @stevewyborney.bsky.social has a plethora of resources for educators at his website: stevewyborney.com
#ElemMathChat

A2: Noticing when "neat numbers" show up in math class, opportunities to play w/ number patterns, factoring patterns, etc.
I wrote up the 254th Carnival of Math post, & found neat info on number 254: it's in sequence
1, 2, 4, 7, 11, ... start w/ 1, then add 1, then +2, +3 etc.
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That is such a fun connection! I love it! #ElemMathChat

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A3 I don't have pictures of all of these, but I started this Google sheet as a resource for my teachers. It has so many great routines that help with number sense! docs.google.com/spreadsheets... #ElemMathChat

A3: @fawnnguyen.substack.com has an amazing page dedicated to visual patterns. These images will keep kids thinking, debating, and reflecting in ways you probably didn’t think were possible! Find a catalogue of images she and her colleagues have created here: visualpatterns.org
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A3: Number talks, with a focus on coming up with as many ways as possible - and make sure that when you're "done", you #NoticeWonder about the ways. Ruth Parker told me "it's a game changer". #ElemMathChat

I can't wait to watch this! #ElemMathChat

A3: Another one of my favorites is Number Talk Images. @kristenacosta.bsky.social has a wealth of resources on her page: tedd.org/choral-count...

And @berkeleyeverett.bsky.social has a wonderful library of tasks and images that you can find here: berkeleyeverett.com/images/numbe...
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Hi Karen! So great to see you! #ElemMathChat

A3: I love Choral Counting & Counting Collections by Megan Franke, Elham Kazemi, and @angelaturrou.bsky.social #ElemMathChat

Find their book here: www.betterworldbooks.com/product/deta...

Find more resources and see videos of Choral Counting in classrooms by clicking here: tedd.org/choral-count...

A1: Number sense is being comfortable working w/number operations, K-12 (& beyond)
For my HS Ss, it means not grabbing a calculator all the time; approaching operations flexibly to do some reasonable mental math.
Important bc number sense enables HS math topics to flow more smoothly.
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According to my friend Max, it's actually harder! www.youtube.com/watch?v=CK6i... #ElemMathChat

A2 What are all of the fun things represent your favorite number? Mine is 12 - My birthday is in the 12 month - donuts and roses come in 12, Christmas is in my 12th month. I can use all of the digits in each of my familys birthday to make 12....... #ElemMathChat

Some of you have already started answering this one!

Q3: What are your favorite number sense activities? Bonus points for links to, or pictures of, the activities! #ElemMathChat

Excellent point. How do we help make the connections to broader concepts in math. We're not just tinkering with numbers. We're doing so in order to make this a common feature of our mathematical dispositions. #ElemMathChat

A1: In a nutshell (to me), it's having a dense, flexible sense about numbers and quantity. It's SO important so that we can reason and recognize patterns and relationships to solve problems. #elemmathchat