Reading the dial (II) Published on February 22, 2022February 20, 2022 by fivecolorssandt@icloud.com Graphs and indicators Digits can be deceiving. Read More
Reading the dial (I) Published on February 15, 2022February 14, 2022 by fivecolorssandt@icloud.com The graph and the digital clock How do you tell time? Read More
Knowing your limits Published on January 18, 2022January 14, 2022 by fivecolorssandt@icloud.com The art of the possible We consider being more realistic in education. Read More
A small tool Published on November 30, 2021November 30, 2021 by fivecolorssandt@icloud.com One step beyond the eyes We consider an anachronism. Read More
Attempting the impossible Published on November 2, 2021November 2, 2021 by fivecolorssandt@icloud.com Cubic equations Sometimes going beyond 2 is extremely difficult. Read More
A simpler theory Published on September 14, 2021September 12, 2021 by fivecolorssandt@icloud.com Measuring complications A simple idea can become a complicated thing to implement. Read More
Future puzzles Published on August 31, 2021August 30, 2021 by fivecolorssandt@icloud.com When today is past What will need to be explained to future readers about today’s literature? Read More
The courage of one’s calculations Published on August 10, 2021August 9, 2021 by fivecolorssandt@icloud.com Knowledge and its uses Knowing how to do something, and doing it, are not the same thing. Read More
In the back of the book Published on May 25, 2021May 24, 2021 by fivecolorssandt@icloud.com The right answer How did the answers in the answer key get there? Read More
Technology and tedium Published on May 11, 2021May 9, 2021 by fivecolorssandt@icloud.com Riemann sums Sometimes technological advances mean things are less exciting. Read More