Points the other tip of ruler at the image of the pin.
So I went to a colleague to brainstorm other ways to teach kids to get a sightline. Maybe have them look through a straw?
I tried it. Tough to see through. The colleague then suggested practicing with sighting the clock. Step 1: get a ruler and a clock.
What was the warmup today in 7th and 5th periods?
I wrote this based on homework questions the kids were grappling with. Upon working this problem, I learned their biggest issue is figuring out how to convert into and out of units such as gigahertz and micrometers.
This day last year: Day 33: Final Instruments Due