Monday Test on similarity. No homework. Next unit is on trigonometry. Tuesday/Wednesday Began trigonometry unit with new central question and examined applications of trigonometry in real life including astronomy and rocket science. Developed ideas of sine, cosine, and tangent by measuring and comparing with ratios, certain lengths of a given triangle and identifying patterns. Learned the SohCahToa memory aid, as well as a silly story to help remember how it goes: Soak-a-toe-uh. Began homework in class. Homework: p. 529-30, #21-27, 37-43, 57, 72 Resources: Trig intro: Sohcahtoa Sine cosine and tangent Video: Basics of sin/cos/tan given a triangle Video: Find missing length of right triangle using sin/cos/tan Thursday/Friday Passed back similarity tests. Corrections (optional) are due Thurs/Fri of next week. Looked at some more applications of trigonometry, including a fun video and the graphs of sine and cosine and their wave/periodic behavior. Practiced more with trig functions and learned about the inverse trigonometric functions, which can find an angle when all you have are the side measures for a right triangle. Some more info on this topic. Homework. Test corrections if necessary; finish worksheet Monday Finished working on our transformation drawings involving dilations, reflections, and translations and Nintendo figures. Then, began our homework involving writing 2 math problems. Homework: (due next class) Neatly write and solve two math problems related to similarity. The problems may ask to: (1) Provide two similar figures and enough given side lengths and ask to find a missing length (2) Determine if two given triangles are similar and explain why (which shortcut to use, if any) (3) Find an unknown measurement of a real-world object by utilizing similar triangles (shadows, reflection in a mirror, parallel lines and surveying, etc.). These should be word problems with a figure provided. Your 2 problems must be of 2 of these 3 varieties. Your provided solution does not need to show work. Resources: see sections 7.2, 7.3, and 7.5 in your textbook; also see this document Tuesday/Wednesday Turned in our written problems involving similarity. Then worked on 3 different triangle/similarity tasks: an angle chase, the measures and self similarity within the golden triangle, and a modified version of last week's "two posts" problem. Then looked at the side-splitter triangle proportionality theorem, including an example. Homework: p. 508: #2-7, 9; pg 509: #1-5 p 508 pdf. p509 pdf Thursday/Friday
Went over homework. Passed out study guide for Monday's test and worked on it individually and collaboratively. SOLUTIONS Homework: Study for test on similarity on Monday!! |
Remember:
Remind:
A: @geo189 to 81010 B: @geo189b to 81010 Email: click here
PowerSchool is the best place to check for assignments and grades.
AuthorMr M. Archives
May 2019
|