# Category Archives: counting

## Geometric Subitizing: A Different Kind of Number Talk

These Geometric Subitizing Cards have been in beta the past two years. I asked our buddy Joe Schwartz to take them for a test drive last spring and he reported back. Joe’s all in. How do they work? Let’s play… Last week I took them for … Continue reading

## Conservation: The more things change, the more they stay the same

Every once in a while I stumble across Piaget’s 7 Conservation Tasks and then I move on. This week was different because my thoughts around conservation won’t go away. In a recent meeting with kindergarten and 1st grade teachers we discussed the importance of students being able to … Continue reading

## The Progression of Addition and Subtraction

The more I create… the more I learn. Here is the 3rd installment of this whole Making Sense Series which has truly forced me to be a better teacher. A more educated teacher. I can’t stress enough how much I’ve … Continue reading

## More Bang for your Buck: The Power of the Estimation Station

Time IS NOT on our side! In a 1st grade planning session I was asked,”How do we fit it all in?” I loved this question because it asked for a solution to problem we know exists. We collectively tackled this question … Continue reading

## The Sounds of Imaging Numbers

One of the most difficult standards for 1st grade students to own is the idea of adding or subtracting multiples of tens OR a group of ones. Without it…all other numbers fall apart. (1.NBT.4-6) Karen is a phenomenal 1st grade teacher. Being new to the … Continue reading

## K-1 Number Sense Trajectory

Before I travelled to NCTM I was finishing up some district PL with K-1 teachers. As part of the workshop, teachers were asked to engage in a Number Sense Trajectory Cut-N-Sort match header and descriptor place in the order that students … Continue reading

## The Algebrafication of Kindergarten

Counting and cardinality is critical in kindergarten. Without it, all math fails. With that being said, counting can be extremely boring which causes many students to quickly lose focus. One thing I’ve tried to do this year is identify ways to engage … Continue reading