Assessment on Volume and Trig. Note: a lot of people missed the trig./pythagorean problem. Here's an example video to help you as you prepare for re-assessing: link
Homework:
- Study flashcards ahead of Friday's EOC: linked here
- Watch and take notes on these 2 videos (GMD-1a)
Went over assessments. Learned about angles of elevation and depression. Worksheet here
Homework:
Finish worksheet (skip #4 for now)
SRT-C8a
Resources:
basic concept of angles of elevation and depression: link
more on the concept: link
excellent example for both finding lengths and finding angles (ignore the "minute" talk at the end) link
concept and more challenging example at end of video: link
Went over assessment on volume and trig review. Looked at rationale behind circumference and area of a circle formula (the videos from Monday's hw). Examined volume of cylinder (stack of circles) and volume of cone. (see video here) to figure out where formula comes from. Also looked at cube/box and its relationship to a pyramid (video here). Wrote about these concepts.
Then looked at what density is (mass per volume, or the amount of stuff in 1 unit of space) and how to use it in a geology problem solving scenario. Then calculated the weight of the Great Pyramid of Giza using density of limestone and the volume of the ancient building.
Finally learned about angles of elevation and depression and how to use trigonometry to solve problems. Worked on a few problems on the worksheet. (Linked here)
Notes from class
Homework;
Finish angles of elevation and depression worksheet (skip #4 for now) [SRT-C8a]
Resources
See Wednesday's post above