The bubble board is a device to create simultaneously 56 identical soap bubbles. Students study the relation between time and the number of remaining bubbles for different concentrations of glycerin and use linear, exponential, ...

At the end of the semester, during the last session of the weekly seminar that accompanies the student teaching experience, we asked our student teachers to think about the one piece of advice they would give to beginning ...

We present activities, with an interactive computer program, that serve to bridge two related but different concepts, derivative at a point and derivative function, and to help students understand better the ...

Existing studies have shown fractions present significant challenges for K-8 students and pre-service teachers. They suggest that students may fail to see fractions as numbers and have difficulty moving beyond the part-whole ...