Recursos relacionados con las matemáticas y material gratuito para profesores.
mayo 10, 2023
In this video, preschoolers share the quantities they see when looking at a photo of a box of doughnuts. There are many ways to answer the question, how many of what?, depending on the unit.
RJEM at Work highlights the everyday efforts of caregivers, community organizations, teachers, researchers, and educational institutions to promote racial justice in the mathematical experiences of children. For the RJEM Local Planning Committee, there are multiple…
RJEM at Work highlights the everyday efforts of caregivers, community organizations, teachers, researchers, and educational institutions to promote racial justice in the mathematical experiences of children. For the RJEM Local Planning Committee, there are multiple…
In this interview, we talked with Dr. Danny Bernard Martin, professor of Mathematics and Education at the University of Illinois Chicago. Dr. Martin's extensive research has focused primarily on understanding the salience of race and…
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…
¿Buscas nuevas ideas de actividades de rekenrek? Prueba a votar con una tabla de rekenrek. En este vídeo, vemos cómo se utiliza una tabla de rekenrek para resolver un dilema habitual en las aulas de educación infantil: elegir entre dos libros favoritos...
Un buen sentido del número diez es fundamental para construir las estrategias de razonamiento de los niños pequeños. Aquí vemos a niños de jardín de infancia haciendo el número diez en un rekenrek, una herramienta con cuentas rojas y blancas en grupos...