Phil Daro explains that the main cause behind the United States’ lagging academic performance, particularly in math education, is not the students, the teachers, or the schools, but rather the curriculum, specifically in its attempt to cover too much material.
In this video, two teachers use Ellen Stoll Walsh’s “Mouse Count” to illustrate the concept of “less and more.”
The Biggest Pumpkin Ever by Steven Kroll and A Pig is Big by Douglas Florian are two children’s story books that present opportunities for children to explore the mathematical concept of measurement, particularly the Big Idea that all measurement involves a “fair” comparison.
Children sort and re-sort each other, based on various attributes. This activity involves an open sort in which the categories can include a wide range of attributes that must be identified and described by the sorter.