iiinova — where your digital self keeps evolving

Kristen Acosta @kristenacosta.bsky.social · 11/08/2026

I’m sitting in an AI training. Trainer says “we want to train the AI to sound like you when writing prompts”. What?!? If I wanted it to sound like me… wouldn’t it work if I wrote it myself?!?! Are we leaning in too hard with this AI stuff? It feels inauthentic.

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Grassroots Workshops @grassrootsworkshops.com · 22/07/2026

Looking for a routine that engages your students while building their number sense? Come explore Clothesline Math and how to use it in your classroom. Learn more about Kristen Acosta's @kristenacosta.bsky.social How To Use Clothesline Math online workshop at grassrootsworkshops.com/wor...

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Kristen Acosta @kristenacosta.bsky.social · 01/04/2026

Ever wonder what it’s like to have a birthday on April Fools’ Day? Let me give you a smile. kristenacosta.com/april-fools-.... #aprilfoolsday #birthday

kristenacosta.com

April Fools Day | KristenAcosta.com

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Kristen Acosta @kristenacosta.bsky.social · 17/02/2026

Biting, kicking, wandering the classroom: Teachers say there's a rise in misbehavior even among the littlest kids hechingerreport.org/biting-kicki... I have certainly seen a difference at my school.

hechingerreport.org

Teachers facing more problems with disruptive students

Teachers, districts and states are taking multiple approaches to curb what elementary teachers say is a trend of increasingly severe behavior problems in their classrooms.

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Kristen Acosta @kristenacosta.bsky.social · 10/02/2026

Teachers got asked to write a definition of number sense. This was one of their answers. (I can't make this up). #numbersense #elemmathchat #elemmath #iteachmath #mtbos🤪

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Melynee Naegele @mnmmath.bsky.social · 30/01/2026

Oh! I love my first glimpse at @kristenacosta.bsky.social 's site! How did I not know about this one? How fun! #ElemMathChat

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Melynee Naegele @mnmmath.bsky.social · 06/02/2026

A9 Last week @ryanflessner.bsky.social shared this amazing site that i wan tot use with my teachers! kristenacosta.com/number-talk-... Thanks @kristenacosta.bsky.social ! #elemmathchat

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Kristen Acosta @kristenacosta.bsky.social · 27/01/2026

Imagine going to a district wide PD on AI for teachers…. And not have WiFi. I can’t make this stuff up. #teacherlife

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Kristen Acosta @kristenacosta.bsky.social · 05/01/2026

Rather than doing New Year’s goals… I asked my class to hat them like more of and less of in the new year. Can’t wait to read them!

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Kristen Acosta @kristenacosta.bsky.social · 18/12/2025

@jennalaib.bsky.social found you a little something for slow reveal graphs

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Kristen Acosta @kristenacosta.bsky.social · 19/11/2025

Truly frustrating to sit on a leadership committee & hear that the team wants to use a program that times children with math facts. It was all I could do not to flip a table. Has anybody not listened to a thing I’ve said for 8 years? It’s true- “you can’t be a prophet in your own land.”

media.tenor.com

a man in a suit and tie is sitting at a table

ALT: a man in a suit and tie is sitting at a table

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Grassroots Workshops @grassrootsworkshops.com · 14/11/2025

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Kristen Acosta @kristenacosta.bsky.social · 01/11/2025

When you have parking lot duty on Halloween… you make people smile!

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Kristen Acosta @kristenacosta.bsky.social · 19/10/2025

I was part of a math problem yesterday. Kristen leaves the hotel in Atlanta at 10am EST and doesn’t get home to California (PST) til midnight. How many hours did it take her to get home? #mathiseverywhere

media.tenor.com

a man is walking down a hallway with a suitcase and a dog .

Alt: a man is walking down a hallway with a suitcase and a dog .

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Kristen Acosta @kristenacosta.bsky.social · 03/10/2025

Are you kidding me? As if I don’t hear this enough during my teaching day #iykyk

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Grassroots Workshops @grassrootsworkshops.com · 09/09/2025

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Kristen Acosta @kristenacosta.bsky.social · 19/08/2025

@cmcmath.bsky.social Hey CMC—do you still come to schools and do a day of math with students? We got a grant and we’re looking to spend it? Who do I talk to? #cmc

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Grassroots Workshops @grassrootsworkshops.com · 30/07/2025

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Kristen Acosta @kristenacosta.bsky.social · 16/07/2025

Got to have dinner with @dykemamath.bsky.social after our sessions in Canyon TX. We talked NCTM, traveling and of course our families!!! #mtbos

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Kim Montague @kimmontague.bsky.social · 10/07/2025

@kristenacosta.bsky.social I always appreciate doing actual math in math sessions. Bravo!

People placing numbers on a number line in the front of a room.

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Annie Forest @annieforest.bsky.social · 25/06/2025

Elementary teachers loving learning about Clothesline Math from @kristenacosta.bsky.social at KINLCon! It was new for everyone and they all seemed excited to give it a try! 🤩 @keepinlearning.bsky.social

Kristen Acosta putting cards on a clothesline to represent a number line.

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Kristen Acosta @kristenacosta.bsky.social · 27/04/2025

I thought this was funny (as a Catholic myself). And in this world… we need to smile. #popefrancis #catholichumor

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Kristen Acosta @kristenacosta.bsky.social · 24/04/2025

How many rooms are on this floor? How did you count?

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Kristen Acosta @kristenacosta.bsky.social · 17/04/2025

When you are on a field trip and you see math. What questions would you ask? #elemmathchat #mtbos #iteachmath

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Kristen Acosta @kristenacosta.bsky.social · 10/04/2025

I have met so many wonderful people on Indiana. I’m excited to be back in June!

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Ryan Flessner @ryanflessner.bsky.social · 13/03/2025

Very excited about #KINLCon this summer. So many great sessions at such a great price. I mean… @kristenacosta.bsky.social or @jennifer-lempp.bsky.social are each worth way more than the $99 registration on their own! Check it all out here: keepindianalearning.org/events/kinlc...

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Kristen Acosta @kristenacosta.bsky.social · 14/03/2025

I decided to do a kind thing for my class and my staff. A little smile for Friday!!! #piday #iteachmath

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Kristen Acosta @kristenacosta.bsky.social · 13/03/2025

my students watched a thunderstorm roll by today. They were fascinated with the lightning and thunder. I teach weather for science.. and I can’t think of a better way to introduce the unit then by seeing it in person (Southern California kids don’t see thunder storms often) #iteacheverything

media.tenor.com

a lightning bolt is visible in the sky

Alt: a lightning bolt is visible in the sky

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Kristen Acosta @kristenacosta.bsky.social · 10/03/2025

The math is not mathing at Spouts grocery store. My hubby and I had an “eggcellent” discussion on how we could purchase our 24 eggs when eggs were only in packs of 18. #mathfails

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Kristen Acosta @kristenacosta.bsky.social · 08/03/2025

@nctm.org is this copyright infringement or infringement of my IP if your magazine puts a similar title to one of my book and session titles? I copyrighted this back in 2022 and have been using this unique title since 2017.

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Kristen Acosta @kristenacosta.bsky.social · 03/03/2025

Props to my mother for bringing shapes to our dinner.

Crackers in the shape of triangle, circle and hexagon

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Kristen Acosta @kristenacosta.bsky.social · 22/02/2025

208 is my favorite number today. That’s the number of educators who joined my session at the @buildmathminds.bsky.social #virtualmathsummit. Many ideas about using photos/images in your classroom. #elemmath #mtbos #iteachmath

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Edutopia @edutopia.org · 18/02/2025

“Some kids think faster than others, but that doesn’t mean that the kids who aren’t as fast don’t understand.” 💭 This instructional strategy encourages more students to participate in class discussions. #EduSky #MiddleSchoolTeacher

buff.ly

Inviting Participation With Thumbs-Up Responses

A quick assessment strategy replaces raised hands, encouraging more students to contribute by accommodating their different processing needs.

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Christopher Danielson @triangleman.bsky.social · 06/01/2025

Good morning! Number one way in the coming weeks to support the work that brought you Which One Doesn't Belong?, Tiling Turtles, Math On-A-Stick, and the Hierarchy of Hexagons is this: Pop into your fave bookstore or library to ask for How Did You Count? ISBN: 978-1032898353 Coming in March

Book cover for How Did You Count? There is a sideways diamond of shiny plastic spheres carefully arranged on a wood floor. The left "half" of the diamond is a triangle with base five, made of light blue spheres. The larger, right "half" is a triangle with base six, made of red spheres.

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Kristen Acosta @kristenacosta.bsky.social · 07/01/2025

I love getting emails like these as a new year begins! It gives me hope and keeps me going to create more math activities! #clotheslinemath #mtbos #iteachmath #elemmath

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Dr Greg Curran @gregbcurran.bsky.social · 01/01/2025

Love this as an ISH activity (see Jo Boaler's Mathish), and seeing what strategies they employ.

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