Idea 2: Changing the Number System for Currencies (Part I) One of my first interactions with decimal-point representations occurred the first time I wanted to buy something with my childhood piggy-bank savings (That “something” was roller blades!). At the time, I was able to understand and accept at face value the types of values that money could have and how to manipulate them in basic ways. It did not occur to me that money could take negative values. Here’s a timeline of my life with respect to understanding of currency values: Ages ~5-~8: Money has positive values. When those values are fully written out, they … Continue reading Number Systems for CurrenciesRead More →