I interview my students. I give them a follow-up standardized Math test. They take teacher-made exams. I have students keep work folders. My students create math portfolios.
Students explain their thinking during a variety of activities.
My students use writing to explain their math thinking. I don't have time for assessment. I have developed my own alternative assessments. I talk to my students. The need for mathematical thinking, reasoning, and communication is embedded in the various jobs, trades, arts, and professions.