Providing proof Published on October 23, 2018October 23, 2018 by fivecolorssandt@icloud.com If-then-therefore Doing proofs in Geometry class is hard. Teaching how to do them is harder. Read More
How big is the world? Published on October 16, 2018October 16, 2018 by fivecolorssandt@icloud.com Measuring a cabbage-patch “It’s a small world” is a cliché. Can we measure how small? Read More
Putting pen to paper Published on October 9, 2018October 9, 2018 by fivecolorssandt@icloud.com Writing changes, and doesn’t We examine several literary genres. 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 Published on October 2, 2018October 2, 2018 by fivecolorssandt@icloud.com Outdated, still in use We look for reasons to teach things that aren’t true.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
Visit your teachers! Published on September 18, 2018September 18, 2018 by fivecolorssandt@icloud.com Closing the loop Life extends beyond the end of the class. Read More
The danger of mathematics Published on September 11, 2018September 6, 2018 by fivecolorssandt@icloud.com Ask a simple question We wind up unexpectedly far from home. Read More
Dealing with data (II) Published on September 4, 2018September 3, 2018 by fivecolorssandt@icloud.com The Law of Propagation of Bad Data You need to go back to the source. Read More
Dealing with data (I) Published on August 28, 2018August 28, 2018 by fivecolorssandt@icloud.com Making the cut We have too much information to deal with. What do scientists do? Read More
Celestial navigation Published on August 21, 2018August 21, 2018 by fivecolorssandt@icloud.com Knowing where you are You can get turn-by-turn directions. What more do you need? Read More
