What exactly is a CBM? CBM stands for Curriculum-Based Measure. In other words, a CBM is a way for teachers to see how students are progressing. In this case it’s Math. You may be thinking, I do this all the time. Every single day, for every single subject. This is true, but it’s more formal. You document and provide information on students’ progress on a weekly basis.
Single skill probes contain like problems. They assess the mastery of a particular skill. For example, the focus may be on assessing comparing fractions.