A small change Published on October 27, 2020October 26, 2020 by fivecolorssandt@icloud.com Making it harder We ponder the question of just what makes a math problem difficult. Read More
How did you do that? Published on October 29, 2019October 27, 2019 by fivecolorssandt@icloud.com Doing and teaching Watching yourself think takes effort and attention. Read More
