3 Act Tasks

Problem solving lessons that
spark a conversation

Clothesline Math

Interactive number
lines for K-6

Clothesline Math Club

See more ideas about
clothesline activities

Number Talk Images

Finding math in every
day places

Now Available For Purchase - Hanging Math Out To Dry With Elementary Clothesline Math

By Kristen Acosta

Making sense of math one card at a time

If you would like to purchase books using a purchase order, please email Kristen at thekristenacosta@gmail.com.

Upcoming Conference

Wisconsin Math Council Math Conference, Green Lake, WI ( May 1 - May 3 )

Latest Blog Posts

Big Things, Small Town

When I get asked to make presentations throughout the US, I am always honored and humbled that someone is interested in my work. I also get a little gitty in that I get to become a tourist. Yes, there are times I will barricade myself in the hotel room for shorter trips. Then there are other times where I ...

How I got started….

Years ago, a colleague of mine suggested that I present at a local math conference. She had been witnessing some of the work that I had been doing in classrooms. Apparently the math ideas, lessons, and strategies were worth sharing. And so, I applied, spent months preparing for the presentation, and went off to my local math conference. I was ...

Why Do I Present?

Fawn Nguyen once wrote a blog post called “Be Brave or Be Desperate.” You can read it here. To summarize, she was asked the question “why do you present?” She considers herself a storyteller of her students’ successes and failures. Fawn stresses how important it is to get the story correct. Her friend in turn replies that Fawn is brave. ...