Friday, February 12, 2016

What's Going On? February 15-19th

Unit 7 Summative Assessment Retakes

Last week students took their unit 7 summative assessment on similarity.  If a student would like to complete a retake on one or more sections, the following must be completed before our unit 8 summative assessment on triangles and trigonometry:

  • Complete all formative work (homework assignments and formative quizzes)
  • Complete corrections on the original assessment
  • Complete personalized extra practice from Mrs. Kamenar
  • Take the Unit 7 Summative Assessment Retake
Please remember that the retake grade will be entered into Infinite Campus, even if the score is lower than the original assessment.  So, students please make sure that you are ready for the retake and ask lots of questions!

Unit 8: Triangles and Trigonometry

Image result for special right trianglesThis week we will continue our study on right triangles and trigonometry.  At the end of last week we reviewed the Pythagorean Theorem.  This week we will continue our study of right triangles by taking a look at the relationships that exist within "special" right triangles.  There is a special relationship between the sides and angles of an isosceles right triangle as well as in a 30-60-90 triangle.  We will check in with a formal formative early in the week to make sure that we are on the right track for the unit.

Image result for soh cah toaDuring the second half of the week we will take a look at some right triangle trig ratios.  We will talk about relationships that exist between sides and angles (SOH CAH TOA) and we will start to set up some ratios in order to solve for missing side lengths.



A Note on Calculators

Students will need to make sure they have a scientific calculator (one with sin, cos, and tan buttons) to complete the unit.  If at all possible, I would suggest that students do not use an iPad calculator app as this is not permissible on standardized tests such as the ACT.  A TI-30+ would be a great calculator for this unit and can be purchased for about $10-15.  If students are serious about their math careers, a graphing calculator such as a TI-84+ might be a good investment but they are costly at $100 or more.  A TI-84+ is definitely NOT a requirement for the course, but students might find them handy to have and they are allowed on standardized tests such as the ACT.


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