Due Date	Homework from the textbook (partial solutions)	Preparation for Certification Exam (partial solutions)	Questions for Tuesday	Class Projects
8/29	p. 203: 19(a-c) p. 214: 16, 18 p. 243: 2, 3, 6, 9, 10, 19(a)	Certification Review #1 due For this and all future reviews, you can choose which 5 exercises to do. Please submit a total of 5 exercises only; the grader will be instructed to only grade the first 5 solutions that are submitted. Warning: If a problem looks too easy to be true, it might not be. So be careful and check for subtleties. At the top of your write-up, you must also write a statement attesting that you have at least thought about all assigned problems. Points will be deducted if you do not write this statement. (This does not mean that you solved all of the problems --- just that you gave some thought about how to solve every problem.)	None. All presentations will be peer-graded.	The class project concerns various ideas that could be used to engage students with topics in the secondary mathematics curriculum. Topics will be assigned on a first-come, first-served basis. You are welcome to sign up by e-mail, but please suggest about 5-10 different topics (in priority order) in case your first choice is no longer available. Be sure to title your file in the form John_Doe_15.docx, as indicated in the instructions.
9/5	p. 244: 20, 22, 33, 37, 43, 48, 51 Hints: #22: Ignore the part about the Euclidean algorithm since we didn’t cover that in class. Just get the answers. #33: It’s false. So you just need to find one counterexample. #48: Argue by contradiction. Suppose that p is a prime that divides bd. Show that p can’t divide ad+bc. FYI: This theorem is a follow-up to p. 203 19(a-c) from last week.	Certification Review #2 due	Group 1 will be responsible for Questions 1-10.	Part 1 (Pre-Algebra and Probability/Statistics) is due.
9/12	p. 244: 25, 30, 31, 32 p. 251: 3, 4, 5, 6, 10, 15, 16 Hints: #31: Of course, 12 = 2^2 * 3 and 120 = 2^3 * 3 * 5. So how much flexibility does that give you with the prime factorization of x? #32: Try x = 10p, where p is a prime greater than or equal to 7.	Certification Review #3 due	Group 2 will be responsible for Questions 11-20.
9/19	p. 253: 2, 4, 6, 9 p. 254: Let’s Go 4 p. 263: 10, 31 Hints: p. 253 #9: Remember that to show a proposition is false, you only need one counterexample. p. 263 #31: I’m not necessarily looking for a formal proof; finding aceeptable values of y via trial-and-error is perfectly fine. Problem 4.1: Here's a popular magic trick for children: (a) Take any 3-digit number in which the first and last digits differ by 2 or more. (b) Reverse the number, and subtract the smaller of the two numbers from the larger (e.g. 782-287=495). (c) Then reverse the result and add (thus 495+594=1089). Prove that you always end up with 1089. Problem 4.2: (a) Here's a second magic trick. Cut out the six numbered cards, read the instructions, and perform this trick (either by yourself or for a friend). Write a statement attesting that you actually did do this. (b) Use binary numbers to explain why this magic trick works. Hint: Find the binary representation of the first few numbers on each of the six cards. Do you see a pattern?	Certification Review #4 due	Group 3 will be responsible for Questions 21-30.	Part 2 (Algebra I and Algebra II) is due.
9/26	None. EXAM #1 Remember that the test starts at 8:00. Please talk to Dr. Q to make alternate arrangements if you’re not able to arrive at class by 8:00. The review questions should help prepare you for the exam. There are also solutions for the review questions; I encourage you to watch these videos only after attempting the review questions for yourself. Also, I don’t claim infallibility. If you think I made an inadvertent mistake while recording these videos, please let me know so I can take a look at it.	Certification Review #5 due	Group 1 will be responsible for Questions 31-40.
10/3	p. 254: Let’s Go 3 p. 264: 18, 19, 20(a-d), 23, 24, 26, 27, 28, 33(a)	Certification Review #6 due	Group 2 will be responsible for Questions 41-50.
10/10	p. 229: 2, 3(cd), 5, 6, 7, 8 p. 347: 2, 5 Notes: p. 230 #2 and #3: Your answers should have the form (something) + (something else) i. Also, your answer for #2 should match the answer to #3(a) if a = 3 and b = 2. p. 230 #6 and #7, the expressions were given in class and in the class notes. You need to prove that these expressions are true. Don't just state them without proof. Regarding p. 347 #2 and #5: We will not cover Section 12.1 in class. So I just expect you to (1) experiment with a graphing calculator until you find cubic polynomials that meet the given criteria, and then (2) once you have your polynomial, then you should explain why it meets the given criteria. You may need to use factoring and/or calculus to produce an adequate explanation. (It is possible to construct such polynomials more systematically, and you are welcome to try to find out how to do these problems without blindly guessing.)	Certification Review #7 due	Group 3 will be responsible for Questions 51-60.	Part 3 (Geometry) is due. If you haven't selected a question from all five areas yet, I encourage you to select questions from the remaining area(s) for this week's submission.
10/17	p. 347 #8(ab), 9 pp. 348-350 Your Turn 12(a), 14(a) p. 353 #1, 2, 4, 10 Hints: p. 347 #8, the local extrema and point of inflection are found by solving f '(x) = 0 and f ''(x) = 0, respectively. Then verify that the x-coordinate of the point of inflection is the average of the x-coordinates of the two local extrema. p. 348 Your Turn 12(a): Do not use the Conjugate Root Theorem (although your answer should match what you’d expect from the Conjugate Root Theorem). Instead, begin by multiplying out (x – 5 – 3i)(x –a – bi). Then collect the constant terms, the terms containing x, and the terms containing x^2. Then figure out the values of a and b so that the imaginary part of this product is equal to zero. p. 353 #10, find both the possible number of positive roots and the possible number of negative roots.	Certification Review #8 due	Group 1 will be responsible for Questions 61-70.
10/24	None. EXAM #2 Remember that the test starts at 8:00. Please talk to Dr. Q to make alternate arrangements if you’re not able to arrive in class by 8:00. The review questions should help prepare you for the exam. There are also solutions for the review questions; I encourage you to watch these videos only after attempting the review questions for yourself.	Certification Review #9 due	Group 2 will be responsible for Questions 71-80.
10/31	p. 266: Your Turn 34 p. 269: 1, 3(bc), 4 p. 347: 6 p. 353: 5 p. 365: 2, 3(a), 7(bcde) Notes: For p. 269 #4, let the following guide your thinking: You can easily check that x = 2 is a root of f(x) = x^3 + 4x^2 – 2x – 20 and that x = -2 is a root of g(x) = -x^3 + 4x^2 + 2x – 20. So, let f(x) = an x^n + … + a1 x + a0. If you know that f(a) = 0, is there a way to modify the coefficients of f and create a new polynomial g so that g(-a) = 0? Once you see how to do this, then you’ll need to prove that your idea actually works. Hint for p. 353 #5: Start with f(x) = x^2 – p, and argue by contradiction. For p. 365 #2(c), it may also be helpful to also graph the polynomial (with a calculator) on the interval [-2,3]. Hint for p. 366 #7(e): (1-a)(1+a+a^2) = 1-a^3.	Certification Review #10 due	Group 3 will be responsible for Questions 81-90.
11/7	p. 277 Your Turn 1 p. 278: 2, 3, 11, 12 p. 280: Your Turn 5(eg) p. 280: 1(a-d) p. 284: 3, 13 p. 319: 5, 7(abd)	Certification Review #11 due	Group 1 will be responsible for Questions 91-100.
Changed to 11/17 because of PBI week (was 11/14)	p. 288: 1, 3, 12(ab) p. 291: 3, 4, 6, 16 p. 307: 1, 2, 5(ac) For p. 307 #5(c), ignore the instruction that says "If a product is required within an exponentiation problem, compute it via logarithms."	Certification Review #12 due	Group 2 will be responsible for Questions 101-110.	Part 4 (Precalculus) is due.
11/21	None. EXAM #3 Remember that the test starts at 8:00. Please talk to Dr. Q to make alternate arrangements if you’re not able to arrive in class by 8:00. The review questions should help prepare you for the exam. There are also solutions for the review questions; I encourage you to watch these videos only after attempting the review questions for yourself.	Certification Review #13 due	Group 3 will be responsible for Questions 111-120.	.
Monday, 12/1 (changed from Wednesday 11/26 by request)	p. 129: 6, 7, 8 p. 231: 15, 23(abde), 25 p. 317: 6 p. 328: 4, 6 Notes: For p. 231 #23(de), only answer the parts involving 1-i. For p. 317 #6(b), you just need a value of h, not the largest value of h that meets the condition. For p. 328 #6, be sure to consult Section 9.3.1 (pp. 281-283) before answering.	Certification Review #14 due	A class survey was distributed in class on 11/26. Students who complete the survey will receive a free 100 on both the book homework and the certification reviews.	The SETE should now be available by logging into http://my.unt.edu
Thursday, 12/4 (changed from Wednesday, 12/3)	p. 328: 8, 9 p. 334: 1, 2, 3, 4(b), 6(bc), 8 p. 337: 1 The review questions should help prepare you for the final. There are also solutions for the review questions; I encourage you to watch these videos only after attempting the review questions for yourself. Please remember to complete the SETE.	Certification Review #15 due	A class survey was distributed in class on 11/26. Students who complete the survey will receive a free 100 on both the book homework and the certification reviews.