A philosophical essay Published on December 17, 2024December 16, 2024 by fivecolorssandt@icloud.com Many topics A mathematical essay turns out to have much more than mathematics in it. Read More
A changing syllabus Published on November 5, 2024November 4, 2024 by fivecolorssandt@icloud.com What to learn “Quantum Mechanics” is not what it used to be. Read More
Getting the stars right Published on August 13, 2024August 12, 2024 by fivecolorssandt@icloud.com Does it matter? We wonder how careful a fiction author really needs to be. Read More
Too simple, or not simple enough Published on July 16, 2024July 12, 2024 by fivecolorssandt@icloud.com Modeling stars How do you know when you’ve included all the important things? Read More
Old projects Published on April 16, 2024April 15, 2024 by fivecolorssandt@icloud.com A plea for documentation We pull out something from the archives. Read More
Breadcrumbs Published on March 5, 2024March 4, 2024 by fivecolorssandt@icloud.com Not even suggestions Our tutor’s activities sometimes depart from the syllabus. Read More
Clutter Published on February 27, 2024February 25, 2024 by fivecolorssandt@icloud.com The state of your desk How clear should your desk, office or home be? Read More
New books and old Published on February 20, 2024February 18, 2024 by fivecolorssandt@icloud.com Adding and subtracting We have too many books, but sometimes we add more. Read More
Choosing classes (I) Published on January 9, 2024January 7, 2024 by fivecolorssandt@icloud.com Supply and demand Choosing next year’s classes can be a puzzle for High School students. Read More
Rewriting the textbooks Published on August 8, 2023August 7, 2023 by fivecolorssandt@icloud.com When, and why We take a tired cliché seriously. Read More
