Students return Published on January 1, 2019December 30, 2018 by fivecolorssandt@icloud.com Two come back Our tutor and our astronomer meet with former students. Read More
Is this always true? Published on December 11, 2018December 10, 2018 by fivecolorssandt@icloud.com Absolute truths Some questions are very difficult to answer, even if you know the answer. Read More
Why keep old things? Published on November 6, 2018November 5, 2018 by fivecolorssandt@icloud.com Collectors and others There are two types of people who retain old technology. Read More
Why teach errors? Published on October 2, 2018October 2, 2018 by fivecolorssandt@icloud.com Outdated, still in use We look for reasons to teach things that aren’t true. Read More
Divisable numbers Published on September 25, 2018September 24, 2018 by fivecolorssandt@icloud.com How many whats in a which? In actual use, the decimal system is not always the best. Read More
The best learning Published on August 14, 2018August 14, 2018 by fivecolorssandt@icloud.com The best teaching? Our tutor ponders methods and results. Read More
Alternate methods Published on July 17, 2018July 17, 2018 by fivecolorssandt@icloud.com The answer or the process? When there’s more than one way to get there, you have to choose. This can be confusing or useful. Read More
Transistors, candles and light bulbs Published on May 1, 2018May 1, 2018 by fivecolorssandt@icloud.com Simple or complicated Which would you rather explain? Read More
Cast iron and Coca-Cola® Published on April 17, 2018April 16, 2018 by fivecolorssandt@icloud.com Chemistry and Physics We perpetuate some stereotypes about scientists. Read More
Only a test Published on March 20, 2018March 19, 2018 by fivecolorssandt@icloud.com Asking the questions Making a test can be harder than taking it. Read More