April marks the 30th year of National Poetry Month and with it a new way to explore the math that infuses the beauty of language. What do you think about when you consider how math and poetry might be related?…
You’re dropping one kid at a birthday party in midtown and you’ve got the other kid in tow. Heading home is an option, though the moment you arrive home it will be time to reverse course and head back to…
“Use the math you know.” It is one of my most important mantras. In fact, I rarely have to say it anymore. When I review an upcoming homework assignment with my students, and we come to a tricky looking or…
We’ve covered the critical pieces of developing counting with meaning in this post. What happens next? Enter additive thinking! When counting gives way to reasoning, it is the beginning of additive thinking. The journey from “count everything” to “just know…
Dice and dominoes are probably some of the first quantities we consciously subitize and assign a numerical value to as children. (Subitizing, you say? What’s that? Check out this post on the many nuances of counting.) The “pip” or dot…
What would you think if I told you counting was actually not as easy as 1-2-3? I was as surprised as you when I studied the development of numeracy in our youngest mathematicians. What we might consider done and dusted…
When a student is used to scrutinizing the values she is working with, the connections emerge. Often the kids are so excited to share the connections they’ve made that they annotate their math homework or burst into an excited monologue…
This is what I asked my second graders when reviewing their homework assignment, which included a question asking them to choose one of three basic addition facts and one of three basic subtraction facts that they found interesting or perhaps…
Andrew WIles was a puzzle-loving ten year old when he came across Fermat’s Last Theorem in a book in his local library. He was ten when he decided that he would be the one to discover the proof that Fermat…
How many dots do you see? HOW do you see them? This image appears in our Kindergarten curriculum as part of something called a “dot talk.” This is an opportunity for students to see math as something that is perceived…