Math-related resources and free stuff for teachers.
March 22, 2022
This child uses the visual arrangement of a ten frame to conceptually subitize quantities into the teen numbers. He recognizes a full row as a unit of 5 and uses that to derive larger numbers…
This child encounters a new type of problem situation: a part-part-whole story where both parts are unknown. He is uncertain how to model the problem at first but has some success with adult support. Focus…
This child uses cubes to model a part-part-whole problem where the whole is unknown. He uses a counting all strategy. He counts out each part and then counts them altogether, starting from one. Focus on…
We are excited to launch RJEM in 12, a series of short and insightful interviews with researchers, teachers, community members, and other stakeholders whose work advances racial justice in early mathematics. Our first guest is…
Looking for new rekenrek activity ideas? Try voting with a rekenrek chart. In this video, we see a rekenrek chart used to solve a dilemma common to early childhood classrooms: choosing between two favorite books…
A good sense of the number ten is critical for building young children’s reasoning strategies. Here we see kindergarteners making the number ten on a rekenrek, a tool with red and white beads in groups…
David Purpura, PhD, of Purdue University describes his team's research and intervention designed around picture books and their effectiveness in homes.
At Promising Math 2019, Kelly Mix gave a talk about how language promotes the development of numerical cognition in young children. Dr. Mix is the Chair of the Human Development and Quantitative Methodologies department at…
In this lesson launch, we see a third-grade teacher using reading comprehension strategies to help children understand a math story problem using a Three Reads strategy.
Omo Moses, founder of MathTalk, and his colleague, Keith Griffin discuss how they connected over basketball and went on to find local, culturally-relevant ways to engage families in math learning in their own neighborhood.