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[Deanna McLennan Ph.D @McLennan1977]

Mystery guessing #math bags. Explore the bag with 10 by shaking and feeling its contents. Do the same to the other four bags and decide if they are less or greater than 10. Place them on the number line. #joyfulmath #MTBoS

[Deanna McLennan Ph.D @McLennan1977]

Reframing a common #winter activity through a #math lens. Let’s create a coding algorithm for the most efficient way of dressing for outdoor play that focuses on #optimization. Ss realized that putting mittens on first would be least effective. #kindercoding #MTBoS

[. @t999999998]

This would be a perfect activity to do during Christmas time! #MTBoS

[Deanna McLennan Ph.D @McLennan1977]

Sensory #math - shake a present and listen to the contents. Which present has the most/least inside. Guess how many objects might be inside. Which would you choose for yourself? Why? #joyfulmath #MTBoS

[Tracy Proffitt @tracyjoproffitt]

Each of these students was modeling the same number.....can you tell what it was? The flat was one today. #mtbos #ReinvestLCS @math6teacher @JHmathematics

[. @t999999998]

This is a great idea to keep students engaged! #MTBoS

[Laura Duggan @lduggan15]

Fractions are yummy when they’re made of 🍕! #MTBoS #iteachmath #wcsdinnovators #tccoyotes

[Brian Aspinall @mraspinall]

11 Ways a Parent Can Help With Math #mtbos #iteachmath #codebreaker

[. @t999999998]

Love this idea! #MTBoS

[Dᴜᴀɴᴇ Hᴀʙᴇᴄᴋᴇʀ @duanehabecker]

We have to help students experience their multiplication facts as something more than just memorization. Here is a little @GeoGebra applet that combines arrays, skip counting, and partial products.
https://t.co/v6D8PPZtDn

[Nichole @MrsK_ITRT_SPS]

Using technology to compare part whole relationships, investigating various ways to make numbers. Next week, they'll be assigned individual tasks through #GoogleClassroom. #spsk12proud #FBES #iteachk #iteachmath #K2CanToo

[. @t999999998]

A great way to incorporate technology into the classroom #MTBoS

[Laura Herman @stilts_laura]

My teacher heart is so happy. We used @Flipgrid for the 1st time today & one of my students explained her thinking BEAUTIFULLY ! Order of Operations is a tough concept to grasp & this superstar explained it in such a comprehensive way! #thirdgrade #mathematician

[Trenton Matthiesen @trentmatthiesen]

I wish I could start my day like #olivepride 4th graders. Eating breakfast and using #mathematicalpractices before the “day” begins.

[ArtOfMathEd @ArtOfMathEd]

Some great images here! Beautiful!

[Trenton Matthiesen @trentmatthiesen]

1st ss using a problem solving template #math #cgi #olivepride

[. @t999999998]

Great way to integrate math with art! #MTBoS

[Ms. Downey🍃 @downey_me]

Grade 2 Art&Math Challenge✂️⭐️ Using pattern blocks to design a “snowflake”❄️Love how these turned out‼️@BrantHillsPS #engaging #learning #primarymath @HDSBMath

[Sophie S. Brady @sophie_brady]

My top reason to have #numbertalks is to build student number sense. Today’s shows the range of approaches and understandings in the class. Powerful (and helpful) start to the week! #MTBoS #iteachmath #elemmathchat

[Math with P. Nik @MrNiksMathClass]

After a whole lot of shaking, the snowpeople in this snow globe must be put back together again. The challenge is to have the sum of the numbers on the body parts equal the number on the hat for all three of them. #iteachmath

[. @t999999998]

A great resource for teachers! #MTBoS

[Sarah Carter @mathequalslove]

21 Activities for the 1st Week of School. This post took forever to write, so I hope it's useful. #MTBoS #iteachmath https://t.co/l9AtPwnxVB

[. @t999999998]

This would be great activity to do in a classroom with students! #MTBoS

[Mashup Math @mashupmath]

Did you know that in a room of just 23 people there’s a 50% chance that two people have the same birthday? #mathchat

[. @t999999998]

Such a fun festive math activity for students #MTBoS

[Mashup Math @mashupmath]

Here's a little holiday area model to kick off the month of December in your classroom! #iteachmath

[MindShift @MindShiftKQED]

The talented @woodard_julie made this! @btsd_t: Love this! Photo credit to @MindShiftKQED