Our geometry textbook covers the distance formula on page 19.
The pythagorean theorem shows up on on page 535.
I think Pythag should be unit 1. We rearranged our order of topics this year and haven’t taught it yet – it is CLEARLY missing!! Distance formula comes at the end though. They need to put them together! At the beginning!
And we wonder why students don’t make the connections among mathematical ideas…
Kind of like my math curriculum that teaches equivalent fractions and simplifying fractions three lessons before teaching LCM and GCF. Really?
why students don’t make the connections
This is the part that kills me. For all of the stuff that we’re expected to do, and all of the silver bullet propositions out there, the one thing that really could make a difference is developing the yearly standards with an eye to how we develop connections between the different concepts, rather than just throwing a a random collection out there, or worse yet that whole spiraling thing, where the different connected aspects need to be revisited years apart.