FRI, 12/09

• Information about the final exam (For Austin's students only. The math 151 final exam is not common)

• Solutions to common exams can be found here.

• Final exam review solutions from the LIFE review.

• Videos of exams

• Streaming videos Tip: Look at the 'night before drill' videos from the first three common exams.

• Practice for final (old date, good problems) and Practice for final answers Note: Section 6.5 will not be on the final exam, so you may omit problems 45-49, and 51-54 from this review set. Also, you may omit problem 19 because we did not cover Newton's method this semester. Typo in key: Problem 35: f is concave up on the interval (-infinity,0) and (4,infinity) thus the inflection points should occur at x=0 and x=4.

TUES, 12/07

• The last WebAssign is due tonight, Dec 7th, at 11:55 pm over section 6.4.

• Tomorrow afternoon, I will drop the lowest quiz and the three lowest webassign scores so you have an accurate average going into the final exam.

• Solutions to common exam 3 are posted.

• Final exam review tomorrow! Thurs Dec 8th, 1-3 pm HELD 100

• Office hours during dead week: Mon, Dec 5, 3-5 pm, Wed, Dec 7, 3-5 pm and Fri, Dec 9, 3-5 pm

• Information about the final exam (For Austin's students only. The math 151 final exam is not common)

• Practice for final (old date, good problems) and Practice for final answers Note: Section 6.5 will not be on the final exam, so you may omit problems 45-49, and 51-54 from this review set. Also, you may omit problem 19 because we did not cover Newton's method this semester.

TUES, 12/06

• In class today, we did all of section 6.4 lecture notes , discussed the final exam, did course evaluations, and passed back exam 3

• The last WebAssign is due Wednesday, Dec 7th, at 11:55 pm over section 6.4.

• Solutions to common exam 3 are posted.

• Final exam review Thurs Dec 8th, 1-3 pm HELD 100

• Help sessions: Time and place: Sunday-Thursday 8-10 p.m. BLOC 166. The last help session will be Dec 8th.

• Office hours during dead week: Mon, Dec 5, 3-5 pm, Wed, Dec 7, 3-5 pm and Fri, Dec 9, 3-5 pm

• Information about the final exam (For Austin's students only. The math 151 final exam is not common)

• Practice for final (old date, good problems) and Practice for final answers Note: Section 6.5 will not be on the final exam, so you may omit problems 45-49, and 51-54 from this review set.

THURS, 12/01

• In class today, we did all of sections 6.2 and 6.3 lecture notes .

• The next WebAssign is due Sunday, Dec 4th at 11:55 pm over sections 6.2-6.3.

• Exams will be returned in lecture next Tuesday. The last matlab will be due at the beginning of class Tuesday. Late labs will not be accepted.

• Final exam review Thurs Dec 8th, 1-3 pm HELD 100

• Help sessions: Time and place: Sunday-Thursday 8-10 p.m. BLOC 166. The last help session will be Dec 8th.

• Office hours during dead week: Mon, Dec 5, 3-5 pm, Wed, Dec 7, 3-5 pm and Fri, Dec 9, 3-5 pm

• Information about the final exam (For Austin's students only. The math 151 final exam is not common)

• Practice for final (old date, good problems) and Practice for final answers Note: Section 6.5 will not be on the final exam, so you may omit problems 45-49, and 51-54 from this review set.

TUES, 11/29

• Exam III will be Tonight, Nov 29, 7:30-9:30 pm covering sections 4.3-6.1 Here are the common exam room assignments.

• WebAssign gradebook has been updated. Be sure to check *ALL* your scores on Webassign and alert your TA to any discrepancies.

• Here are the instructions for common exam 3

MON, 11/28

• Night Before Drill tonight! 5:45-7:45 pm HELD 200

• Tomorrow in class, we will work Sample exam 3 and Sample exam 3 solutions

• Exam III will be Tuesday, Nov 29, 7:30-9:30 pm covering sections 4.3-6.1 Here are the common exam room assignments.

• WebAssign gradebook has been updated. Be sure to check *ALL* your scores on Webassign and alert your TA to any discrepancies.

• Here are the instuctions for common exam 3

TUES, 11/22

• In class today, we did all of sections 5.7 and 6.1. lecture notes This concludes exam 3 material.

• Here is the take home activity and the answersheet which will be due Monday, Nov 28th at the beginning of lab.

• The next WebAssign is due Wednesday, Nov 23, at 11:55 pm over sections 5.5-6.1

• My Monday office hours will be from 2-4 (Instead of the usual 3-5)

• WebAssign gradebook has been updated. Be sure to check *ALL* your scores on Webassign and alert me to any discrepancies.

• Week in review tonight! over sections 5.5-6.1

• Night before drill Monday, Nov 28 5:45-7:45 pm HELD 200

• Exam III will be Tuesday, Nov 29, 7:30-9:30 pm covering sections 4.3-6.1 Here are the common exam room assignments.

• Help sessions! Take advantage of this free help! Time and place: Sunday-Thursday 8-10 p.m. BLOC 166. Help sessions will not be held this Wed, and will resume Sunday Nov 27th.

SUN, 11/20

• Here is the take home activity and the answersheet which will be due Monday, Nov 28th at the beginning of lab. If you are late to lab, you will be penalized 2 points. If you do not turn in the answersheet during your lab time, you will receive a zero on the assignment.

THURS, 11/17

• In class today, we did all of section 5.5 lecture notes .

• There will be a quiz in lab Monday, Nov 21, over sections 5.1-5.3

• Recitation Wednesday, Nov 23, is cancelled. I will post a take home activity which will be due Monday Nov 28 at the beginning of lab. Once this activity is posted, I will email you the location of the link. I will not hold office hours Wed, Nov 23.

• Check your grades on webassign. As always, if you see a discrepancy, let me or your TA know asap.

• Here are Matlab help sessions to work on matlab outside of class. Calclab open hours will close on TUESDAY 22 November at 10pm for the Thanksgiving holiday.  Hours will resume SUNDAY 27 November at 7pm,  i.e., there are no Calclab open hours Wednesday 7-10pm, Thursday 7-10pm, or Sunday 1-7pm during the holiday. 

• Help sessions: Time and place: Sunday-Thursday 8-10 p.m. BLOC 166

• Office hours: M 3-5 and W 2-4, BLOC 630B

THURS, 11/10

• In class today, we finished section 5.1 and did all of 5.2 lecture notes .

• The next WebAssign is due tonight, Nov 10 at 11:55 pm over section 4.8

• There will be a quiz in lab Monday, Nov 14 over sections 4.5-4.8

• Here are Matlab help sessions to work on matlab outside of class.

• Week in Review next Tues is moved to BLOC 169.

• Help sessions: Time and place: Sunday-Thursday 8-10 p.m. BLOC 166

• Office hours: M 3-5 and W 2-4, BLOC 630B

TUES, 11/08

• In class today, we did all of sections 4.8 and most of 5.1 lecture notes

• During recitation Wednesday, Nov 9, you will have an activity over sections 4.6-4.8

• The next WebAssign is due Wednesday, Nov 9, at 11:55 pm over sections 4.5-4.6. Section 4.8 will be due Thursday, Nov 10 at 11:55 pm

• WebAssign gradebook has been updated. Be sure to check *ALL* your scores on Webassign and alert me to any discrepancies.

• My office hours are Mondays 3-5 pm and Wednesdays 2-4 pm, BLOC 630B. Also by appointment.

• Here are Matlab help sessions to work on matlab outside of class.

• Week in review tonight! over sections 4.3-4.8

• Help sessions! Take advantage of this free help! Time and place: Sunday-Thursday 8-10 p.m. BLOC 166

THURS, 11/03

• In class today, we finished section 4.5 and did all of 4.6 lecture notes .

• There will be a quiz in lab Monday, Nov 7 over section 4.4

• The next Matlab assignment is due Monday, Nov 7, at the beginning of class.

• Here are Matlab help sessions to work on matlab outside of class.

• Week in Review Every Tuesday, 5:30-7:30 pm BLOC 102 EXCEPT the week following a common exam.

• Help sessions: Time and place: Sunday-Thursday 8-10 p.m. BLOC 166

• Office hours: M 3-5 and W 2-4, BLOC 630B

TUES, 11/01

• In class today, we did all of sections 4.4 and most of 4.5 lecture notes

• During recitation Wednesday, Nov 2, exam 2 will be returned and you will have a quiz over section 4.3.

• The next WebAssign is due Wednesday, Nov 2, at 11:55 pm over sections 4.3-4.4

• Print section 4.6 lecture notes and bring them with you to class Thursday.

• Exam 2 scores are now posted on WebAssign. Be sure to check *ALL* your scores on Webassign and alert me to any discrepancies.

• My office hours are Mondays 3-5 pm and Wednesdays 2-4 pm, BLOC 630B. Also by appointment.

• Here are Matlab help sessions to work on matlab outside of class.

• No week in review tonight!

• Help sessions! Take advantage of this free help! Time and place: Sunday-Thursday 8-10 p.m. BLOC 166

THURS, 10/27

• Exam II will be tonight, Oct 27, 7:30-9:30 pm covering sections 3.2-4.2. Here are the common exam room assignments.

• Here are the RULES for common exam 2

• During lab Monday, Oct 31, you will have an activity over section 4.3.

TUES, 10/25

• In class today, we did all of section 4.3 lecture notes .

• Exam II will be Thursday, Oct 27, 7:30-9:30 pm covering sections 3.2-4.2. Here are the common exam room assignments.

• Here are the RULES for common exam 2

• Night Before Drill Wednesday, Oct 26, 5:45-7:45 pm HELD 200

• During class Thursday, Oct 27th, I will take questions over this problem set. Answers will not be posted, so be sure to look at this problem set before class Thursday with questions prepared.

• During lab Wednesday, Oct 26th, your TA will go over Monday's activity and answer questions pertaining to exam II.

• The next WebAssign is due Wednesday, Oct 26th, at 11:55 pm over sections 3.11-4.2. Work the practice set first!

• Here are Matlab help sessions to work on matlab outside of class.

• Help sessions: Time and place: Sunday-Thursday 8-10 p.m. BLOC 166

• Office hours: M 3-5 and W 2-4, BLOC 630B

THURS, 10/20

• In class today, we finished section 4.1 and all of 4.2. This concludes Exam II material lecture notes .

• Exam II will be Thursday, Oct 27, 7:30-9:30 pm. Here are the common exam room assignments.

• Filled in notes are now available here .

• Night Before Drill Wednesday, Oct 26, 5:45-7:45 pm HELD 200

• During lab Monday, Oct 24th, you will have an activity which is a review for exam II. There will not be a quiz, nor will there be any matlab due.

• During class Tuesday, Oct 25th, we will cover section 4.3 and possibly start section 4.4.

• During lab Wednesday, Oct 26th, your TA will go over this activity and answer questions pertaining to exam II.

• The next WebAssign is due Wednesday, Oct 26th, at 11:55 pm over sections 3.11-4.2. Work the practice set first!

• Here are Matlab help sessions to work on matlab outside of class.

• Help sessions: Time and place: Sunday-Thursday 8-10 p.m. BLOC 166

• Office hours: M 3-5 and W 2-4, BLOC 630B

THURS, 10/13

• In class today, we did all of section 3.10 lecture notes .

• There will be a quiz in lab Monday, Oct 17 over sections 3.7-3.9

• The next Matlab assignment is due Monday, Oct 17, at the beginning of class.

• The next WebAssign is due Wednesday, Oct 19, at 11:55 pm over sections 3.8-3.10 Work the practice set first!

• Here are Matlab help sessions to work on matlab outside of class.

• Week in Review Every Tuesday, 5:30-7:30 pm BLOC 102 EXCEPT the week following a common exam.

• Help sessions: Time and place: Sunday-Thursday 8-10 p.m. BLOC 166

• Office hours: M 3-5 and W 2-4, BLOC 630B

TUES, 10/11

• In class today, we did all of sections 3.8-3.9 lecture notes

• During recitation Wednesday, Oct 12, you will have an activity over sections 3.7-3.9. Notes are allowed, and you may work in pairs.

• The next WebAssign is due Wednesday, Oct 12, at 11:55 pm over sections 3.5-3.7.

• Print section 3.10 lecture notes and bring them with you to class Thursday. This section is all word problems, so it is especially important that you print the problems so you can keep up.

• Midterm grades will be sumbitted this Friday. Be sure to check your scores on Webassign and alert me to any discrepancies.

• My office hours are Mondays 3-5 pm and Wednesdays 2-4 pm, BLOC 630B. Also by appointment.

• Here are Matlab help sessions to work on matlab outside of class.

• Week in review tonight! Every Tuesday, 5:30-7:30 pm BLOC 102.

• Help sessions! Take advantage of this free help! Time and place: Sunday-Thursday 8-10 p.m. BLOC 166

THURS, 10/05

• In class today, we finished section 3.6 and did all of section 3.7 lecture notes .

• There will be a quiz in lab Monday, Oct 10 over sections 3.5-3.6.

• The next Matlab assignment is due Monday, Oct 10, at the beginning of class.

• The next WebAssign is due Wednesday, Oct 12, at 11:55 pm over sections 3.5-3.7. Work the practice set first!

• The common exam solutions are now posted Here

• Here are Matlab help sessions to work on matlab outside of class.

• Week in Review Every Tuesday, 5:30-7:30 pm BLOC 102 EXCEPT the week following a common exam.

• Help sessions: Time and place: Sunday-Thursday 8-10 p.m. BLOC 166

THURS, 09/29

• In class today, we did sections 3.2, 3.3 and most of 3.4 lecture notes .

• Here is the take home activity and here is the answersheet .This activity is due Monday, Oct 3 at the beginning of lab. Since this activity is take home, there will be no partial credit. It is either right or wrong.

• There will be a quiz in lab Monday over the take home activity.

• The third Matlab assignment is due Monday, Oct 3, at the beginning of class.

• The next WebAssign is due Wednesday, Oct 5, at 11:55 pm over sections 3.2-3.4. Work the practice set first!

• The common exams will be returned in lab Wednesday, Oct 5th. I will be posting the exam scores on Webassign no later than Monday, Oct 3rd. I will email you once grades have been posted.

• Here are Matlab help sessions to work on matlab outside of class.

• Week in Review Every Tuesday, 5:30-7:30 pm BLOC 102 EXCEPT the week following a common exam.

• Help sessions: Time and place: Sunday-Thursday 8-10 p.m. BLOC 166

THURS, 09/22

• In class today, we finished section 2.7 and did all of section 3.1 lecture notes. This concludes exam 1 material.

• During recitation Monday, Sept 26th, you will have an activity over exam I material. Notes are allowed, and you may work in pairs.

• The next WebAssign is due Monday, Sept 26, at 11:55 pm over sections 2.7-3.1.

• Print the 'Practice set' (under week 5) and come to class Tuesday prepared with questions.

• The first common exam is Tuesday, Sept 27, 7:30-9:30 pm covering sections 1.1-3.1. Here are the common exam room assignments.

• Here are the rules for common exam 1 WHICH YOU ARE EXECTED TO FOLLOW

• Night before drill Monday Sept 26, 5:30-7:30 pm **HELD 200**.

• Here are past common exams. Note that almost all of the past common exam I include section 3.2 (taking the derivative using derivative rules). Our exam ends at section 3.1 (finding the derivative using the limit definition).

• My office hours next Monday will be moved to 2-4 pm.

• Help sessions! Take advantage of this free help! Time and place: Sunday-Thursday 8-10 p.m. BLOC 166

TUES, 09/20

• In class today, we did all of section 2.6 and most of 2.7 lecture notes

• During recitation Wednesday, Sept 14th, you will have an activity over sections 2.5-2.6. Notes and calculators are allowed, and you may work in pairs.

• The next WebAssign is due Wednesday, Sept 21, at 11:55 pm over sections 2.3-2.6. Work the practice set first! Answers are available for the practice problems. Remember, use firefox and do not wait until last minute to do the assignments.

• Print sections 2.7-3.1 lecture notes and bring them with you to class Thursday.

• The first common exam is Tuesday, Sept 27, 7:30-9:30 pm covering sections 1.1-3.1. Here are the common exam room assignments. If you are left handed and you did not answer this question on the first ICA, email me by Friday Sept 23 to request a left handed desk. After this date, the seat assignments will be finalized.

• Here are past common exams.

• My office hours are Mondays 3-5 pm and Wednesdays 2-4 pm, BLOC 630B. Also by appointment.

• Here are Matlab help sessions to work on matlab outside of class.

• Week in review tonight! Every Tuesday, 5:30-7:30 pm BLOC 102.

• Help sessions! Take advantage of this free help! Time and place: Sunday-Thursday 8-10 p.m. BLOC 166

THURS, 09/15

• In class today, we finished section 2.3 and did all of section 2.5 lecture notes .

• The third Matlab assignment is due Monday, Sept 19, at the beginning of class.

• Quiz in lab Monday, Sept 19, covers sections 1.3-2.3. No notes/caclulators allowed.

• The next WebAssign is due Wednesday, Sept 21, at 11:55 pm over sections 2.3-2.6. Work the practice set first!

• Print sections 2.6-3.1 lecture notes and bring them with you to class next week.

• Scantron packets will be due the week of Sept 19th. The scantrons are #815 or #815E. Each student must turn in 5 scantron forms. Clip them together and put a sticky note with your name attached. Failure to turn in them by Friday Sept 23 will result in a 2 point deduction on exam I.

• The first common exam is Tuesday, Sept 27, 7:30-9:30 pm. Here are the common exam room assignments. If you are left handed and you did not answer this question on the first ICA, email me by Friday Sept 23 to request a left handed desk. After this date, the seat assignments will be finalized.

• My office hours this semester are Mondays 3-5 pm and Wednesdays 2-4 pm, BLOC 630B. Also by appointment.

• Here are Matlab help sessions to work on matlab outside of class. In addition, there is now a video available if you are getting a blank screen with No Machine!

• Week in Review Every Tuesday, 5:30-7:30 pm BLOC 102

• Help sessions: Time and place: Sunday-Thursday 8-10 p.m. BLOC 166

TUES, 09/13

• In class today, we did all of section 2.2 and most of 2.3 lecture notes

• During recitation Wednesday, Sept 14th, you will have an activity over sections 1.3-2.3 Notes and calculators are allowed, and you may work in pairs.

• The next WebAssign is due Wednesday, Sept 14, at 11:55 pm over sections 1.3-2.2. Work the practice set first! Answers are available for the practice problems. Remember, use firefox and do not wait until last minute to do the assignments.

• Print sections 2.5-2.6 lecture notes and bring them with you to class Thursday.

• My office hours this semester will be Mondays 3-5 pm and Wednesdays 2-4 pm, BLOC 630B. Also by appointment.

• Here are Matlab help sessions to work on matlab outside of class.

• Week in review tonight! Every Tuesday, 5:30-7:30 pm BLOC 102.

• Help sessions! Take advantage of this free help! Time and place: Sunday-Thursday 8-10 p.m. BLOC 166

THURS, 09/08

• In class today, we did all of section 1.3 lecture notes .

• The second Matlab assignment is due Monday, Sept 12, at the beginning of class.

• Quiz in lab Monday, Sept 12, covers sections 1.1-1.2. No notes/caclulators allowed.

• The second WebAssign is due Wednesday, Sept 14, at 11:55 pm over sections 1.2-2.2. Work the practice set first!

• Print sections 2.3-2.6 lecture notes and bring them with you to class next week.

• Scantron packets will be due the week of Sept 19th. The scantrons are #815 or #815E.

• My office hours this semester will be Mondays 3-5 pm and Wednesdays 2-4 pm, BLOC 630B. Also by appointment.

• Here are Matlab help sessions to work on matlab outside of class. In addition, there is now a video available if you are getting a blank screen with No Machine!

• Week in Review Every Tuesday, 5:30-7:30 pm BLOC 102

• Help sessions: Time and place: Sunday-Thursday 8-10 p.m. BLOC 166

TUES, 09/06

• In class today, we did all of section 1.2 lecture notes

• Do the Suggested Homework from section 1.2.

• The first Matlab assignment was due Monday, Sept 5. However, the TA will accept the matlabs during recitation Wednesday, Sept 7th, for a 2 point deduction in score.

• During recitation Wednesday, Sept 7th, you will have an activity over sections 1.1 and 1.2. Notes and calculators are allowed, and you may work in pairs.

• The first WebAssign is due Wednesday, Sept 7, at 11:55 pm over appendix D and section 1.1. Work the practice set first! Answers are available for the practice problems. Remember, use firefox and do not wait until last minute to do the assignments.

• Here is the Note Card Quiz, due Thursday, September 8th, at the beginning of class. You may turn it in to me earlier if you wish. If you have not yet gotten a notecard, get one from me after class Tuesday.

• Print section 1.3-2.2 lecture notes and bring them with you to class Thursday.

• My office hours this semester will be Mondays 3-5 pm and Wednesdays 2-4 pm, BLOC 630B. Also by appointment.

• Here are Matlab help sessions to work on matlab outside of class.

• Week in Review starts tonight! Every Tuesday, 5:30-7:30 pm BLOC 102.

• Help sessions! Take advantage of this free help! Time and place: Sunday-Thursday 8-10 p.m. BLOC 166

THURS, 09/01

• In class today, we did all of section 1.1 lecture notes . In my 2:20 class, I did not get to the last problem so we will do it Tuesday.

• Do the Suggested Homework from section 1.1.

• My office hours this semester will be Mondays 3-5 pm and Wednesdays 2-4 pm, BLOC 630B. Also by appointment.

• If you have not yet logged into WebAssign, do so NOW.

• The first Matlab assignment is due Monday, Sept 5, at the beginning of class.

• Quiz in lab Monday, Sept 5, covers appendix D only. No notes/caclulators allowed.

• The first WebAssign is due Wednesday, Sept 7, at 11:55 pm over appendix D and section 1.1. Work the practice set first! Solutions are available for the practice problems.

• Print section 1.2-2.2 lecture notes and bring them with you to class Tuesday.

• Here are Matlab help sessions to work on matlab outside of class. If you missed lab Monday, go here and do the matlab set up.

• Here is the Note Card Quiz, due Thursday, September 8th, at the beginning of class. You may turn it in to me earlier if you wish. If you have not yet gotten a notecard, get one from me after class Tuesday.

• Week in Review Every Tuesday, 5:30-7:30 pm BLOC 102 starting the second week of class.

• Help sessions start this Sunday! Time and place: Sunday-Thursday 8-10 p.m. BLOC 166

TUES, 08/30

• In class today, we discussed the course syllabus and did all of appendix D lecture notes . We also did an In Class Assignment (ICA) #1

• Do the Suggested Homework from appendix D. Sections 0.1 and 0.2 are also a good source of practice on algebra skills.

• My office hours this semester will be Mondays 3-5 pm and Wednesdays 2-4 pm, also by appointment.

• You have until Wednesday, Aug 31, at noon to log into webassign. You do not have to begin an assignment, simply log in. This will automatically place you in my gradebook. If you do not log in by Wednesday, you will recieve a 0 for the first in-class assignment. (ICA #1)

• Tomorrow (Wed) in Recitation, you will complete your first activity over appendix D. You are allowed to use your notes and textbook, and you may collaborate with your classmates. In addition, the TA will circulate the room and offer hints if you are stuck on a particular problem. The TA will not give answers, however, and will not tell you if your answer is correct prior to turning in the answersheet. Once you finish the activity, you are free to leave.

• The first WebAssign is due Sunday, Sept 4, at 11:55 pm over appendix D and section 1.1. Work the practice set first! Solutions are available for the practice problems.

• Quiz in lab Monday, Sept 5, covers appendix D only. In addition, the first Matlab assignment is due.

• Here are Matlab help sessions to work on matlab outside of class. If you missed lab Monday, go here and do the matlab set up.

• Print section 1.1 lecture notes and bring them with you to class Thursday.

• Here is the Note Card Quiz, due Thursday, September 8th, at the beginning of class. You may turn it in to me earlier if you wish. If you have not yet gotten a notecard, get one from me after class Thursday.

• Week in Review Every Tuesday, 5:30-7:30 pm BLOC 102 starting the second week of class.

• Help sessions start this Sunday! Time and place: Sunday-Thursday 8-10 p.m. BLOC 166

Howdy and welcome to Math 151! Below are a few items for you to know before the first day of classes:

• YES you do go to lab on Monday, Aug 29. During this time, you will get oriented with Matlab, meet your TA, and begin the Matlab set up. If you miss lab, you will start off the semester behind and this will put you at a disadvantage.

• Here is the Course Syllabus for sections 516-521 and the Course Syllabus for sections 531-536. Print your syllabus and bring it with you to class Tuesday.

• If you have not already done so, go to WebAssign . First, read the Student Information Page. Secondly, log in using your NetId and password. Assignments have not yet been loaded.

• Print Appendix D lecture notes and bring them with you to class Tuesday.

• Here is the first graded assignment, due Thursday September 8th.

• Come to class Tuesday knowing your section number. There may be a pop quiz Tuesday over this simple little fact.