Math vocabulary, rarely used in the context of my own elementary school years, now intrigues and challenges me as a teacher. When used in rich mathematical environments, vocabulary extends student learning, enabling deeper communication and supporting many of the Practice Standards. Read more ... 

Check out the Common Core State Standard rubrics that were generated by teachers for use in kindergarten, first, and second grades. Read more ... 

I recently helped co-host a S'more Math Family Night event that was a hit for all involved. We started by having students and their families meet in the school's multi-purpose room, where I introduced some of the new visual models and strategies students would employ this year. Read more ...

Frustrated with his own learning experience with prime numbers, Alec McEachran developed this visual model to help students discover the unique characteristics of prime numbers, instead of simply memorizing the standard algorithm for finding them. Read more...

Kindergarten classes may enjoy singing along with the 5 Little Turkeys song as they prepare for the Thanksgiving holiday. Visit the Harry Kindergarten Music YouTube Channel for more Kindergarten Songs. Read more...

In the days before Buzz Lightyear ("Infinity and beyond!") I rarely heard children use the word "infinity." But nowadays, it's commonplace to hear the term uttered by students, right down to the youngest kindergarteners. Read more ...