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GBK Geometry

GBK Geometry. Jordan Johnson. Today’s plan. Greeting Review Asg #74: Ch. 11 Lesson 2 Set I Exercises 18-30. Bonus: Set II Exercises 37-41. Homework / Questions Clean-up. Open Puzzle. Each digit is replaced by “X”. American Mathematical Monthly, April 1954.

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GBK Geometry

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  1. GBK Geometry Jordan Johnson

  2. Today’s plan • Greeting • Review Asg #74: Ch. 11 Lesson 2 • Set I Exercises 18-30. • Bonus: Set II Exercises 37-41. • Homework / Questions • Clean-up

  3. Open Puzzle Each digit is replaced by “X” American Mathematical Monthly, April 1954. Contributed by P.L. Chessin.

  4. Puzzle & Work • Need to show me yesterday’s assignment? Now. • 10+ minutes: Work on long division puzzle. • In pairs or trios, do: • Ch. 11 L1 (p. 431): • Exercises 20-30. • Bonus: Exercises 48-51. • Notify me when you’re done. • Next: • Test Analysis • Complete the “Math Test Analysis” sheet. • Hand in, stapled to the front of your test. • Due Thursday, 5/9 (periods 1 & 2)or Friday, 5/10 (period 7).

  5. Homework • Test Analysis: • Complete the “Math Test Analysis” sheet. • Hand in, stapled to the front of your test. • Due Thursday, 5/9 (periods 1 & 2)or Friday, 5/10 (period 7).

  6. Clean-up / Reminders • Pick up all trash / items. • Push in chairs (at front and back tables). • See you tomorrow!

  7. Overlapping Squares puzzle

  8. Pi Day Puzzle – Progress? • A polygon is inscribed in a circle iff all its vertices are on the circle. • Using 2 colors, is it possible to color every point on a circle (note, on the circle, not in it) such that no isosceles triangle inscribed in the circle has all three vertices the same color?

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