Programming a TI-85 Graphing Calculator – Revisting the 1990’s TI-BASIC

In my previous post, I discussed how I cleaned out and restored my old TI-85 Graphing Calculator after finding corroded batteries inside. After finally getting it to turn on, I immediately started reliving my high school experience. It was honestly kind of surprising how quickly my memories came back to me. Despite not using the … Read more

TI-85 vs Potassium Carbonate: A Cautionary Tale

This year at the R Studio conference, I heard an excellent presentation from Mary Rudis on teaching statistics with R at community colleges. (I don’t teach at that level, but enjoy learning more about education techniques.) She mentioned in her talk that many students get their start in stats programming using graphing calculators. This comment … Read more

Additional Examples of Nested If Statements

In my previous post, I discussed an issue in Scratch relating to Nested If statements. I think that by limiting the If statement to only one conditional (an If condition or an Else condition), the concept of multi-conditional statements has been made more difficult that it should be. I believe that Nested If statements are … Read more