TrigonometryCollaborative

Valerie McBee11:10-12:10Room 401

Participants will: Engage in a math task Engage in collaborative planning

Outcomes

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Group Code: g1aaso

An observer is near a river and wants to calculate the distance across the river. He measures the angle between his observations of two points on the shore, one on his side and one on the other side, to be 28º. The distance between him and the point on his side of the river can be measured and is 300 feet. The angle formed by him, the point on his side of the river, and the point directly on the opposite side of the river is 128º. What is the distance across the river?

Develop a strategy to solve the problem. Be prepared to share your strategy with the group.

Warm-Up: The River

What strategy did you create? Why did you select that strategy? How might this be incorporated into Unit 1?

Group Discussion Part I

How might students approach this problem? What are the main mathematical

concepts/skill necessary for this task? How might this task be used in instruction?

Group Discussion Part II

Form small groups and begin to look through Units 0 & 1 resources.◦ What are the essential understandings students

should have developed by the end of the unit?◦ How will you structure your time (long range

plan)?◦ How will you pre-assess what students may

already know?◦ What tasks/lessons do you plan to use?◦ What else do you need?

Collaborative Planning

What insights have you gained from reviewing the resources and thinking about your plans for Units 0 & 1?

Group Discussion

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Math Gatherings

Wednesday, September 12th @Dunloggin MS Wednesday, October 10th @Wilde Lake HS Wednesday, November 14th

Wednesday, December 12th

Wednesday, January 9th

Wednesday, February 20th

Wednesday, March 13th

Thursday, April 25th (afternoon of Spring PD Day)

Wednesday, May 8th

Math Gatherings--Dates

Questions?

Thank You!!!