# Mr. Dreyer's Geometry Classes at Lexington High School

## Misc

- Core+ trig
- GeoGebra
- Course summary/study guide (Now includes all of chap 10.)
- Welcome/expectations letter
- More supplies you need: Compass, protractor, and straightedge (ruler). No need to bring these to class. Also please buy and bring to class colored pencils or pens.

## Assignments, lesson, classwork

- Fri 2009-06-19 11:00
- Math final exam
- C block: room 164 (proctor: M. Simon); D block: room 167 (proctor: Doherty)
- Final reviews 1-9 mega-packet (answers)
- Math dept exam archive

- Math final exam
- Thu 2009-06-18
- C block: Final review 9

- Wed 2009-06-17
- C block: Final review 7 & 8
- D block: Final review 9

- Tue 2009-06-16
- D block: Final review 7 & 8

- Mon 2009-06-15
- Final review 5 & 6

- Fri 2009-06-12
- Final review 3 & 4

- Thu 2009-06-11
- Wed 2009-06-10
- C block: Coordinate geometry and transformations. Classwork/homework: coordinate geometry, transformations. Web resources: animations from handouts, more dynamic animations
- D block: Final review 1 & 2, with course summary

- Tue 2009-06-09
- D block: Coordinate geometry and transformations. Classwork/homework: coordinate geometry, transformations. Web resources: animations from handouts, more dynamic animations

- Mon 2009-06-08
- 12.4-12.6: Volume. Read p.575-578 including sample problems 1-3. Problems (p. 579-580) 1-5, 10. Then read p.583-584 (stop after Th. 120). Sample problems 1,2. Problems (p. 585-586): 1, 3, 6, 7. Then read p. 589 and do problem 1.
- Don't worry about memorizing area/volume formulae; they will be given to you on the final.

- Fri 2009-06-05
- 12.1-12.3: Surface area. Problems: 12.1 (p. 563ff) 3, 4; 12.2 (p. 566ff) Sample 1-2, problems 1, 3bc; 12.3 (p. 572ff) Sample problem and problems 1-5

- Wed 2009-06-03
- C block: 11.3 Area: trapezoids. Sample problems, p. 524, 1-3. Problems (p. 525ff): 2, 7, 9, 11, 13, 19
- D block: 11.5 Areas of regular polygons. Read Sec 11.5 (p.531ff). Problems (p.533ff): 1-3, 5, 7, 8, 15-17

- Tue 2009-06-02
- D block: 11.3 Area: trapezoids. Sample problems, p. 524, 1-3. Problems (p. 525ff): 2, 7, 9, 11, 13, 19

- Mon 2009-06-01
- 11.2 Area: triangles and parallelograms. Sample problems, p. 518, 2-4. Problems, p. 519ff: 8, 9, 11-14, 16-18, 20

- Fri 2009-05-29
- C & D blocks: Chap 10 test: circles

- Thu 2009-05-28
- C block: More Chap 10 (circles) review

- Wed 2009-05-27
- More Chap 10 (circles) review. Problems: p.444 #10, p.462 sample #3, p.463 sample #4, p.466 #21, p.476 #18, p.483 #18, p.490 #11, p.502 #9, p.503 #17,

- Tue 2009-05-26
- D block: Chap 10 review: circles. Problems: P. 507: 20-26

- Mon 2009-05-25: Memorial Day
- Fri 2009-05-22
- C block: Chap 10 review: circles. Problems: P. 507: 20-26
- D block: Chap 10 review: circles. Problems: P. 506: 6-9, 12-14, 16-19

- Thu 2009-05-21
- C block: Chap 10 review: circles. Problems: P. 506: 6-9, 12-14, 16-19

- Wed 2009-05-20
- Math MCAS
- Chapter 10 (Circles) review: Read chap. summary (p.504). Start reviewing chap 10 sections. Problems: p.505 1, 2, 4ab, 5.
- Section 10.9: Circumference & arc length: Read pp.499ff. Problems: 7-10, 12-14.

- Tue 2009-05-19
- Math MCAS

- Mon 2009-05-18
- More MCAS prep

- Fri 2009-05-15
- MCAS prep
- (More MCAS stuff near top of page.)

- Thu 2009-05-14
- C block: Sec. 10.7: 11-15, 17, 19, 20

- Wed 2009-05-13
- C block: Sec. 10.7: Inscribed and circumscribed polygons. Read sec (pp 486ff). Do sample problems. Problems (pp 489ff) 1-8
- D block: Sec. 10.7: 11-15, 17, 19, 20

- Tue 2009-05-12
- D block: Sec. 10.7: Inscribed and circumscribed polygons. Read sec (pp 486ff). Do sample problems. Problems (pp 489ff) 1-8

- Mon 2009-05-11
- Sec. 10.6: More Angle-Arc theorems. Read sec (pp 479ff). Do sample problems. Problems (pp 481ff) 4, 7-16, 19, 21

- Fri 2009-05-08
- Angles related to a circle. Read sec 10.5 (pp 468ff). Problems (pp 472ff): 13-16, 19-24, 27, 28

- Thu 2009-05-07
- C block: Angles related to a circle. Read sec 10.5 (pp 468ff). Problems (pp 472ff): Sample problems 1-5, then 1-10.

- Wed 2009-05-06
- C block: Tangents and secants. Homework problems (pp 465ff): 14, 15, 16, 18, 20, 21
- D block: Angles related to a circle. Read sec 10.5 (pp 468ff). Problems (pp 472ff): Sample problems 1-5, then 1-10.

- Tue 2009-05-05
- D block: Tangents and secants. Homework problems (pp 465ff): 14, 15, 16, 18, 20, 21
- Play with Tangents, secants, the two-tangent theorem, and common tangents.

- Mon 2009-05-04
- Tangents and secants. Homework: Read Section 10.4 (pp. 459ff). Problems: Sample problems 1-4. Problems 2, 5, 6, 10, 11, 12, 13.
- Play with Tangents, secants, the two-tangent theorem, and common tangents.

- Fri 2009-05-01
- Arcs. Homework: Read Sec 10.3, pp 450ff. Note the summary of Th. 79-84 on p.453. Problems: 6, 7, 9-13, 17-19

- Thu 2009-04-30
- C block: Circles: congruent chords. Homework: Read Sec 10.2 (p.446ff). Problems: 2, 3, 6, 7, 9, 11, 12

- Wed 2009-04-29
- C block: Circles: Problems (pp 442ff): 14, 15, 17, 20, 23
- D block: Circles: congruent chords. Homework: Read Sec 10.2 (p.446ff). Problems: 2, 3, 6, 7, 9, 11, 12

- Tue 2009-04-28
- D block: Circles: Problems (pp 442ff): 14, 15, 17, 20, 23

- Mon 2009-04-27
- Circles: Read Sec 10.1 (pp 439-442). Problems (pp 442ff): Sample problems 1-3, problems 3-6, 8, 9, 11, 16

- Mon 2009-04-20 - Fri 04-24: April vacation
- Fri 2009-04-17
- Quiz on trig

- Thu 2009-04-16
- Wed 2009-04-15
- Trig review: Review problems, study guide

- Mon 2009-04-13
- Classwork/homework: p. 471ff: Investigation 3, Problems 1-4, "Summarize the math", "Check your understanding"

- Thu 2009-04-09
- C block: Classwork: p. 469ff: Problems 4-6, "Summarize the math", "Check your understanding". Homework: p. 478: 10

- Wed 2009-04-08
- C block: Core Plus Course 2, Unit 7, Lesson 1, Inv 2 (p. 467ff). Measuring without measuring. Classwork: 1-3. Homework "Applications" (p. 477ff) 9, 11, 12, 20
- D block: Classwork: p. 469ff: Problems 4-6, "Summarize the math", "Check your understanding". Homework: p. 478: 10

- Tue 2009-04-07
- D block: Core Plus Course 2, Unit 7, Lesson 1, Inv 2 (p. 467ff). Measuring without measuring. Classwork: 1-3. Homework "Applications" (p. 477ff) 9, 11, 12, 20

- Mon 2009-04-06
- Trigonometry: In class: Go over one trig problem with a given slope; another with a given angle. One more day to finish Core Plus Unit 7 Lesson 1 p.458ff; finish all problems including, Summarize the Math, Check your Understanding.
- Car jack & trig playground
- If you use a calculator for trig: make sure you are in "degree mode," not "radian mode".

- Fri 2009-04-03
- Trigonometry: In class: Core Plus Unit 7 Lesson 1 p.458ff; finish all problems including, Summarize the Math, Check your Understanding. Homework: finish classwork.
- Car jack & trig playground
- If you use a calculator for trig: make sure you are in "degree mode," not "radian mode".

- Wed 2009-04-01
- Trigonometry: In class: Core Plus Unit 7 Lesson 1 p.458ff; problems 6-9, Summarize the Math, Check your Understanding. Homework: finish classwork.
- Car jack & trig playground
- If you use a calculator for trig: make sure you are in "degree mode," not "radian mode".

- Mon 2009-03-30
- Trigonometry: In class: Core Plus Unit 7 Lesson 1 p.458ff; problems 1-5. Homework: finish classwork.
- Car jack & trig playground

- Fri 2009-03-27
- Test on Pythagorean Theorem

- Thu 2009-03-26
- C block: Pythagorean review (Chap 9). Problems (answer exactly, not to "the nearest tenth" or whatever): 25-27, 29-33.

- Wed 2009-03-25
- C block: Pythagorean review (Chap 9). Read chap summary p. 428, but skip the last 3 concepts/procedures (anything to do with solid figures and trigonometry). Problems (answer exactly, not to "the nearest tenth" or whatever): 3, 4, 5, 6, 9, 16, 20-24.
- D block: Pythagorean review (Chap 9). Problems (answer exactly, not to "the nearest tenth" or whatever): 25-27, 29-33.

- Tue 2009-03-24
- D block: Pythagorean review (Chap 9). Read chap summary p. 428, but skip the last 3 concepts/procedures (anything to do with solid figures and trigonometry). Problems (answer exactly, not to "the nearest tenth" or whatever): 3, 4, 5, 6, 9, 16, 20-24.

- Mon 2009-03-23
- Special triangles. Problems (p. 409ff): 13, 14, 16, 18, 19, 22, 23

- Fri 2009-03-20
- Special triangles. Read Section 9.7 (p.405ff). Problems: 1-12.

- Thu 2009-03-19
- C block: Section Families of right triangles. Read Sec 9.6 (398ff). Problems: 1ac-6ac, 5, 16, 18

- Wed 2009-03-18
- C block: Distance formula. Sec. 9.5 Problems (p.395ff): 9, 13-16, 22, 23
- D block: Section Families of right triangles. Read Sec 9.6 (398ff). Problems: 1ac-6ac, 5, 16, 18

- Tue 2009-03-17
- D block: Distance formula. Sec. 9.5 Problems (p.395ff): 9, 13-16, 22, 23

- Mon 2009-03-16
- Distance formula. Read sec. 9.5 p.392ff. Problems: 1ace, 2, 3, 5-8, 10, 11

- Fri 2009-03-13
- More Pythagorean Theorem: p. 388ff problems: 12ac, 13-15, 17, 22-24
- Thu 2009-03-12
- Block C: Altitude-on-hypotenuse theorems. Section 9.3 (377ff). Problems: 13, 14,16, 17a, 19. Also read Pythagorean Theorem section (384ff) and do problems 1aceg, 2-10 if not done yesterday.
- Wed 2009-03-11
- Pythagorean Theorem. Worksheet. Applet. Also read Pythagorean Theorem section (384ff) and do problems 1aceg, 2-10
- Block C: Because of power outage, please print and finish the above worksheet. Do the book problems today or tomorrow with tomorrow's homework. (You don't need to run the applet.)
- Tue 2009-03-10
- Block D: Altitude-on-hypotenuse theorems. Section 9.3 (377ff). Problems: 13, 14,16, 17a, 19
- Mon 2009-03-09
- Altitude-on-hypotenuse theorems. Read Section 9.3 (377ff). Problems: 1, 3abc, 4ad, 6, 8-12
- Fri 2009-03-06
- Introduction to circles. Read Section 9.2 (370ff). Problems:
- Thu 2009-03-05
- C block: Radicals review. Read Section 9.1 (367ff). Classwork (pdf). Problems: 1aceg, 2ace, 3ac, 4bd, 5bdf, 6bdf, 7bdf, 8bd, 9-12
- Wed 2009-03-04
- C block: Test on similarity (chapter 8)
- D block: Radicals review. Read Section 9.1 (367ff). Classwork. Problems: 1aceg, 2ace, 3ac, 4bd, 5bdf, 6bdf, 7bdf, 8bd, 9-12
- Tue 2009-03-03
- D block: Test on similarity (chapter 8)
- Mon 2009-03-02: snow day
- Weekend of 2009-02-28
- Read course summary/study guide
- Study chapter 8
- How to study math

- Fri 2009-02-27
- Chapter 8 (Similarity) review. Review problems (p. 361ff): 5, 6, 7, 9, 10, 12, 13, 15, 19, 23, 28

- Thu 2009-02-26
- C block: Section 8.5: Theorems involving proportions (day 2). Problems: 19-25 odd (27 optional)

- Wed 2009-02-25
- C block: Theorems involving proportions. Read Section 8.5 (p. 351ff). Problems: 1-17 odd
- D block: Section 8.5: Theorems involving proportions (day 2). Problems: 19-25
- Angle Bisector Theorem proof

- Tue 2009-02-24
- D block: Theorems involving proportions. Read Section 8.5 (p. 351ff). Problems: 1-17 odd
- Angle Bisector Theorem proof

- Mon 2009-02-23
- Classwork: Similarity lab proofs: worksheet, GeoGebra picture
- 8.4 Congruence and proportion in similar triangles. Reread Sec 8.4 (p. 345-347). Problems: 2, 10-13, 14-20 even, 24.

- Winter break!
- Friday 2009-02-13
- Thu 2009-02-12
- C block: 8.3 13-15.
- C block: 8.4 Congruence and proportion in similar triangles. Read Sec 8.4 (p. 345-347). Problems: Sample problems. Problems: 1, 3-6, 9

- Wed 2009-02-11
- C block: 8.3 Similarity proofs. Homework: Read Sec 8.3 (p. 339-341). Sample problems: all. Problems: 2, 3, 6-11
- D block: 8.3 13-15.
- D block: 8.4 Congruence and proportion in similar triangles. Read Sec 8.4 (p. 345-347). Problems: Sample problems. Problems: 1, 3-6, 9
- Similar triangle proof toy: See AA, SSS~ and SAS~ in action.

- Tue 2009-02-10
- D block: 8.3 Similarity proofs. Homework: Read Sec 8.3 (p. 339-341). Sample problems: all. Problems: 2, 3, 6-11
- Similar triangle proof toy: See AA, SSS~ and SAS~ in action.

- Mon 2009-02-09
- 8.2 Similarity. Homework: Read Sec 8.2. Problems: Sample problems 1-3; problems 2, 5, 8, 9, 11-17
- Similar triangles toy

- Fri 2009-02-06
- Thu 2009-02-05
- C block: Sec. 8.1 (ratio and proportion, p.325-331). Problems: 14-22

- Wed 2009-02-04
- C block: Sec. 8.1 (ratio and proportion, p.325-329). Problems: 2, 3ac, 4bc, 5, 6ab, 8-12
- D block: Sec. 8.1 (ratio and proportion, p.325-331). Problems: 14-22

- Tue 2009-02-03
- D block: Sec. 8.1 (ratio and proportion, p.325-329). Problems: 2, 3ac, 4bc, 5, 6ab, 8-12

- Mon 2009-02-02
- Quiz on Chap 7
- Homework: Read Sec. 8.1 (ratio and proportion, p.325-329). Do sample problems.

- Fri 2009-01-30
- Review. Homework: p. 320-323: 1,4 6, 9, 10, 13, 15, 17, 18, 21, 25

- Thu 2009-01-29
- C block: 7.4 Regular polygons. Homework: (p. 316-317). Problems: 1bd, 2bd, 3bd, 4bd, 9, 12, 13

- Wed 2009-01-28: snow day
- Tue 2009-01-27
- D block: 7.4 Regular polygons. Homework: (p. 316-317). Problems: 1bd, 2bd, 3bd, 4bd, 9, 12, 13

- Mon 2009-01-26
- 7.4 Regular polygons. Homework: Read 7.4 (p. 314-315). Problems: 1ace, 2ace, 3ace, 4ace, 5, 7?

- Fri 2009-01-23
- Section 7.3: Formulae involving polygons. Homework: 1d, 3b, 10a,c,e, 11, 12, 13a, 14-18

- Thu 2009-01-22
- C block: Section 7.3: Formulae involving polygons. Homework: 1a,c,e, 2, 3a,c, 4-9

- Wed 2009-01-21
- C block: Test on 7.1-7.2
- D block: Computer lab 700:
- D block: Constructions re-redux

- Tue 2009-01-20
- D block: Section 7.3: Formulae involving polygons. Homework: 1a,c,e, 2, 3a,c, 4-9

- Fri 2009-01-16
- C block: Review problems (p.320-323) 1-4, 8-11, 18-21, 25, 26 (optional), 27 (optional)
- D block: Test on 7.1-7.2

- Thu 2009-01-15: PD half day: no C or D block
- Wed 2009-01-14
- C block: Sec 7.2, No-choice and AAS. Homework: Problems 2-18 even (p. 304-306)
- D block: Review problems (p.320-323) 1-4, 8-11, 18-21, 25, 26 (optional), 27 (optional)

- Tue 2009-01-13
- D block: Sec 7.2, No-choice and AAS. Homework: Problems 2-18 even (p. 304-306)

- Mon 2009-01-12
- Sec 7.2, No-choice and AAS. Homework: Read p 302-303. Problems 1-17 odd (p. 304-306)

- Fri 2009-01-09
- Homework: Reread Sec. 7.1. Problems 15-23 (p. 300-301).
- Fun amazing hint on problem 20

- Thu 2009-01-08
- C block: Chapter 7: Polygons. Homework: Read Sec. 7.1: Triangle application theorems. Problems: 1-14.
- Theorem 50 hint (Sum of angles in a triangle is 180°)
- Theorem 52 (Midline)

- Wed 2009-01-07: snow day
- Tue 2009-01-06
- D block: Chapter 7: Polygons. Homework: Read Sec. 7.1: Triangle application theorems. Problems: 1-14.
- Theorem 50 hint (Sum of angles in a triangle is 180°)
- Theorem 52 (Midline)

- Winter vacation
- Tue 2008-12-23
- D block: Constructions re-redux

- Mon 2008-12-22
- Chap 5 test: Parallel lines and related figures
- You may bring in a 3x5 card with
*one*side containing whatever you want.

- Fri 2008-12-19
- More review. Homework: Chap 5 review (p.266-267) problems 15, 16, 19-26, 28-30

- Thu 2008-12-18
- C block: Chap 5 review
- Problem 5.7 #15

- Wed 2008-12-17
- C block: 5.7: Proving special quadrilaterals. Problems (p. 258-262): 19-22, 25-28; prove kite proposition 2: If one of the diagonals of a quadrilateral is the perpendicular bisector of the other, then it's a kite.
- D block: Chap 5 review

- Tue 2008-12-16
- D block: 5.7: Proving special quadrilaterals. Problems (p. 258-262): 19-22, 25-28; prove kite proposition 2: If one of the diagonals of a quadrilateral is the perpendicular bisector of the other, then it's a kite.

- Mon 2008-12-15
- 5.7: Proving special quadrilaterals. Read Sec 5.7 (p. 255-258). Problems (p. 258-262): 5-11, 13, 15-18

- Fri 2008-12-12
- Thu 2008-12-11
- C block: Proving it's a parallelogram: Read Sec 5.6 (p.249-251). Problems: 1-6, 9, 11, 12

- Wed 2008-12-10
- C block: Properties of quadrilaterals: Problems: 13-19, 22, 23, 26, 27-30
- D block: Proving it's a quadrilateral: Read Sec 5.6 (p.249-251). Problems: 1-6, 9, 11, 12

- Tue 2008-12-09
- D block: Properties of quadrilaterals: Problems: 13-19, 22, 23, 26, 27-30

- Mon 2008-12-08
- Properties of quadrilaterals: Read Chap 5.5 (p.241-244). Problems: 1-12

- Fri 2008-12-05
- Quadrilaterals: Read Chap. 5.4 (p.234-237). Problems: 1-8, 10, 11, 13-15, 17, 19-21
- Explore quadrilaterals to help with problems 1-5

- Thu 2008-12-04
- C block: Section 5.3 Parallel postulate, congruences associated with parallel lines (p. 224-229). Prove Theorems 39-44. Problems: 16, 18, 19, 21, 24, 25, 28, 29, 30
- Big hint on problem 30 (Sum of angles in a triangle is 180°)

- Wed 2008-12-03
- C block: Read Section 5.3 Parallel postulate, congruences associated with parallel lines (p. 224-229). Problems (p. 229-231): 1-4, 6-14 even
- D block: Section 5.3 Parallel postulate, congruences associated with parallel lines (p. 224-229). Prove Theorems 39-44. Problems: 16, 18, 19, 21, 24, 25, 28, 29, 30
- Big hint on problem 30 (Sum of angles in a triangle is 180°)
- Visualize theorem 37 (if parallel, then alternate interior angles are congruent)

- Tue 2008-12-02
- D block: Read Section 5.3 Parallel postulate, congruences associated with parallel lines (p. 224-229). Problems (p. 229-231): 1-4, 6-14 even

- Mon 2008-12-01
- 5.2 Proving that lines are parallel. Homework: Reread Section 5.2 (p. 216-219). Understand proof of Theorem 30. Problems (p. 222-223) 16, 18, 19, 21, 22, 24, 25 (you may assume RECT is a rectangle), 28.

- Tue, Wed 2008-11-25/26
- Constructions redux

- Mon 2008-11-24
- 5.2 Proving that lines are parallel. Homework: Read Section 5.2 (p. 216-219). Understand proof of Theorem 30. Write proofs of Theorems 32-36, using the book's hints. Problems: 1-9, 11, 12, 14, 15, 17.

- Fri 2008-11-21
- Thu 2008-11-20
- C block: proofs by contradiction. Homework: Read Sec 5.1, p. 211-212. Problems: 1-13 odd, 10, 14

- Wed 2008-11-19
- Tue 2008-11-18
- Mon 2008-11-17
- Test on Chap. 4

- Fri 2008-14
- Review. Review. Homework: Read chap summary, p. 205. Problems: 1-11, 13, 15, 17, 18, 20, 21

- Thu 2008-13
- C block: Review. Homework: Read chap summary, p. 205. Problems: 1-11, 13, 15, 17, 18, 20, 21

- Wed 2008-11-12
- Section 4.6: Slope. Read Section 4.6 (p.198-202). Problems (p.202-204): 1, 5, 7, 8, 9, 11, 14, 15, 17, 18

- Mon 2008-11-10
- Section 4.5: Parallel lines. Read Section 4.5 (p. 192-195). Problems (p.196-197) all.

- Fri 2008-11-07
- Section 4.4: Equidistance theorems. Homework: read sec 4.4 (p. 184-187). Problems (p. 187-190): 1-5, 9, 11-14, 16, 21, 23
- Lesson

- Thu 2008-11-06
- C block: Section 4.3: A right angle theorem. Homework: read sec 4.3 (p.180-181; Problems: 1,2,4,9,10,12,13,15

- Wed 2008-11-05
- C block: Section 4.2: Missing diagrams. Homework: read sec 4.2 (p.176-178). Problems: p.178-179 1, 2-12 even, 13-15
- D block: Section 4.3: A right angle theorem. Homework: read sec 4.3 (p.180-181; Problems: 1,2,4,9,10,12,13,15

- Tue 2008-11-04
- D block: Section 4.2: Missing diagrams. Homework: read sec 4.2 (p.176-178). Problems: p.178-179 1, 2-12 even, 13-15
- Check out yesterday's problem 16.

- Mon 2008-11-03
- Section 4.1: Detours and midpoints
- Homework: Read sec 4.1 (p.169-172). Problems: 1-6, 9-15 odd, 16-18 (p. 172-175)

- Friday 2008-10-31
- Test: Chapter 3
- In addition to doing sample and practice problems and studying the book, check out the newly up-to-date summary of what we've learned, check out the Chap 3 review lesson, and the geometry toys.
- Bring all your homework for this week to class today or Monday.

- Thursday 2008-10-30
- Lesson: Chap 3 review
- C block: Homework: Chap 3 review problems, p. 162-164. Optionally, for extra homework credit
*(and to help study for the test)*do the cumulative review, all but #3 p. 165-167. There will*not*be any clock problems on this test.

- Wednesday 2008-10-29
- C block: Homework: read chap 3.8, p. 156-158; problems: 1-17 odd, 18
- D block: Homework: Chap 3 review problems, p. 162-164. Optionally, for extra homework credit
*(and to help study for the test)*do the cumulative review, all but #3 p. 165-167. There will*not*be any clock problems on this test.

- Tuesday 2008-10-28
- D block: Homework: read chap 3.8, p. 156-158; problems: 1-17 odd, 18

- Monday 2008-10-27
- 3.7: Angle-side theorems. Lesson. Homework: Read section 3.7, p. 148-152, including working out sample problems. Problems: 1, 3, 5, 6, 7, 8, 10, 14, 16, 18 (assume A is the vertex for all △s), 19, 20, 22-25

- Friday 2008-10-24
- D block: Topic: Types of Triangles. Homework: Read section 3.6 (p.142-144.) Spend a little time with the triangles in the Types of triangles toy. As you move them around, the equilateral, equilateral, equiangular, isoceles and right triangles (green) stay true to form, while the others (red) may change. Problems: p.144-147 all.
- (C block) Back to 3.3: CPCTC and Circles. Homework: Read section 3.3 (p.125-126.) Problems: p. 127-130 all

- Thursday 2008-10-23
- C block: Topic: Types of Triangles. Homework: Read section 3.6 (p.142-144.) Spend a little time with the triangles Types of triangles toy. As you move them around, the equilateral, equilateral, equiangular, isoceles and right triangles (green) stay true to form, while the others (red) may change. Problems: p.144-147 all.

- Wednesday 2008-10-22
- Topic: Beyond CPCTC. Homework: Read section 3.5 (p.125-126.) Play with sample problem 1 in the beyond CPCTC toy. Problems: p. 127-130 all

- Tuesday 2008-10-21
- (D block) Homework: Read section 3.3 (p.125-126.) Problems: p. 127-130 all

- Monday 2008-10-20
- Homework: Read section 3.4 (p.131-134.) Problems: p. 135-137 all
- Geometry toy: amazing facts about the three medians of a triangle

- Friday 2008-10-17
- Homework: Read Section 3.3 (p.125-126). Problems: p. 127-130 all

- Tuesday/Wednesday 2008-10-14/15
- Chapter 2 quiz retake

- Friday 2008-10-10
- Quiz!

- Wed 2008-10-08
- Homework: Read Section 3.2 (p. 115-119). Homework: start (C block) or continue (D block) problem set (p.120-124). Due Wednesday.

- Tue 2008-10-07
- (D block) Homework: Read Section 3.2 (p. 115-119). Homework: start problem set (p.120-124). Due Fri (D block), Mon (C block)

- Mon 2008-10-06
- Homework: Read Section 3.1 (p. 111-114). Problems: p. 114 all. For problems 4 and 5, also define a mathematical function
*f*(*x*,*y*) for each of the transformations. For example, for problem 4a, the transformation is*f*(*x*,*y*) = (*x*, —*y*).

- Homework: Read Section 3.1 (p. 111-114). Problems: p. 114 all. For problems 4 and 5, also define a mathematical function
- Fri 2008-10-03 (see Thursday)
- Thu 2008-10-02
- Get ready for a quiz in the early part of next week.
- Homework: Read chapter 2 summary, p. 104. Review anything you have questions about. Problems: p.105-109. Do them all. You may use a two-column proof wherever it says "paragraph proof." Due Monday.

- Wed 2008-10-01
- Homework: Read Sec 2.8 (p.100-102). Problems (p.102-103): all.

- Mon 2008-09-29
- Homework: Read Sec 2.7 (p.95-97). Note that in addition to transitivity, congruence is
*reflexive*(A ≅ A) and*symmetric*(if A ≅ B then B ≅ A). This allows us to call congruence an*equivalence relation*. Figure out why the "Substitution property" is meaningless. Do not use it! Instead, move from the world of geometry (angles, segments, etc.) to the world of numbers and substitute using your "get out of jail free" card (algebra). Problems (p.97-99): 2-20 even; odd optional.

- Homework: Read Sec 2.7 (p.95-97). Note that in addition to transitivity, congruence is
- Fri 2008-09-26
- Homework: Read Sec 2.6 (p.89-91). Problems: all (p.91-94).

- Thu 2008-09-25
- C block homework (moving backwards!): Read Sec 2.4 (p.76-78). Prove Theorems 5-7 (p. 77). Problems: P.79-81 (all)

- Wed 2008-09-24
- C block homework: Read Sec 2.5 (p. 82-85). Problems: P. 86-88, all but 18.
- D block homework: Read Sec 2.5 (p. 82-85). Problems: P. 86-88, all but 18.

- Tue 2008-09-23: D block
- Homework: Read Sec 2.4 (p.76-78). Prove Theorems 5-7 (p. 77). Problems: P.79-81 (all)
- Lesson: 2.4 Congruent Supplements and Complements

- Mon 2008-09-22
- Test covering Chap 1, 2.1, 2.2

- Fri 2008-09-19
- Classwork/homework. Review for test Monday: Chap 1, 2.1, 2.2. Read Chap 1 summary (p. 53). Problems: Chap 1 review (p. 54-59) 1, 2, 5-17 odd, 21, 22, 23-27 odd, 33-41 odd, 42, 43. Also review the book and homework up through 2.2.

- Thu 2008-09-18
- C block homework: Read Chap 2.2 p. 66-68. Problems (p. 69-71). All
*except*4, 20, 24. For 17, do a two-column proof.

- C block homework: Read Chap 2.2 p. 66-68. Problems (p. 69-71). All
- Wed 2008-09-17
- C block homework: Read Chap 2.1 p. 61-63. Problems: 1-14 (p. 63-65)
- D block homework: Read Chap 2.2 p. 66-68. Problems (p. 69-71). All
*except*4, 20, 24. For 17, do a two-column proof.

- Tue 2008-09-16
- D block homework: Read Chap 2.1 p. 61-63. Problems: 1-14 (p. 63-65)

- Mon 2008-09-15
- Lesson: Statements of Logic
- Homework: Skim Section 1.7 (p. 39-43). Read Section 1.8 (p. 44-46). Problems: All of A and B (p. 47-48).

- Fri 2008-09-12
- Lesson
- Homework: Read Section 1.5 p. 28-31. Problems (p.32-35): 1-7 odd, 8-24

- Thu 2008-09-11
- C block Lesson
- C block homework: Read Section 1.4 p. 23-25. Problems: All of them (p. 26,27). For problem B.11, note that 70°20' = (70 20/60)° and 19°40' = (19 40/60)°.

- Wed 2008-09-10
- C block lesson: Collinearity, betweenness, assumptions
- C block homework: read Section 1.3 p. 18-20. Problems: 1-7,11,12,14,15,17
- D block Lesson
- D block homework: Read Section 1.4 p. 23-25. Problems: All of them (p. 26,27). For problem B.11, note that 70°20' = (70 20/60)° and 19°40' = (19 40/60)°.

- Tue 2008-09-09
- D block: Make sure you have done homework from last two days

- Mon 2008-09-08
I had these backwards until someone corrected me (and got a bump in his class participation grade). They should be right now:
- C block Lesson: Knowing and Measuring
- C block Homework: Read Sec 1.2 (pp 9-14 but just skim "parts of a degree"); do problems A4, 6-11; B13, 15, 17; C19, 21
- D block lesson: Collinearity, betweenness, assumptions
- D block homework: read Section 1.3 p. 18-20. Problems: 1-7,11,12,14,15,17

- Fri 2008-09-05 (D block)
- Welcome back!
- Homework: Read Sec 1.2 (pp 9-14 but just skim "parts of a degree"); do problems A4, 6-11; B13, 15, 17; C19, 21
- Lesson: Knowing and Measuring

- Wed 2008-08-27
- Homework: Read Sec 1.1 (pp 3-6), do problems A1-A7, B11-12, C13
- Lesson: "Defining" the undefined

- Tue 2008-08-26
- Math Dept geometry Lv 1 page