Kurt Killion

Anyone routinely use #semiperimeter in the context of rectangle explorations? Seems absent in curricula.

@Trianglemancsd Submit to the mctm in Missouri, and I bet it would be accepted. IMHO, it was good in New Orleans!

@ChrisHunter36 @apharbau @davidwees I think the CC (esp. math practices) and the Principles to Actions are pushing the quality a little

@Trianglemancsd I heard this in reference to ELA (maybe because they had dropped some of the classics and used reading in tech culture)