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Mth 21, A Mathematical World
Fall 2025, Section D01, 22187
Instructor:
Cormac
O'Sullivan
We meet in NI 203 (that's Nichols) on Mon, Wed,
10:00 – 11:15.
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Class Information and the syllabus
Math Tutoring Lab - very helpful for any math questions
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Mth 21 Class Calendar
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| Date | Day | Sections covered | Homework | |
| 1 | Aug 27 | Wed | Introduction, 2.1 Sets and set operations | |
| Sept 1 | Mon | No class | ||
| 2 | Sept 3 | Wed | 2.1 Sets and set operations, continued | |
| 3 | Sept 8 | Mon | 2.2 Applications of Venn diagrams | HW #1 |
| 4 | Sept 10 | Wed | 2.3 Introduction to Combinatorics | |
| 5 | Sept 15 | Mon | 2.4 Permutations and Combinations | HW #2 |
| 6 | Sept 17 | Wed | 2.5 Infinite sets | |
| Sept 22 | Mon | No class | ||
| Sept 24 | Wed | No class | ||
| 7 | Sept 29 | Mon | 4.1 Population, Sample and Data, Review for quiz | |
| Oct 1 | Wed | No class | ||
| 8 | Oct 6 | Mon | QUIZ 1, then 4.2 Measures of Central Tendency, Percentiles | HW #3 |
| 9 | Oct 8 | Wed | 7.4 Prime numbers and perfect numbers | |
| Oct 13 | Mon | No class | ||
| 10 | Oct 14 | Tue | (Monday schedule) 7.5 Fibonacci numbers and the Golden Ratio | |
| 11 | Oct 15 | Wed | 3.1 History of probability, Review for quiz | HW #4 |
| Oct 20 | Mon | No class | ||
| 12 | Oct 22 | Wed | QUIZ 2, then 3.2 Basic terms of probability | HW #5 |
| 13 | Oct 24 | Fri |
(Monday schedule) 3.3 Basic rules of
probability Class notes |
|
| 14 | Oct 27 | Mon | Review for midterm | |
| 15 | Oct 29 | Wed | Midterm exam | |
| 16 | Nov 3 | Mon | 3.3 Basic rules of probability | |
| 17 | Nov 5 | Wed | 3.4 Combinatorics and probability | HW #6 |
| 18 | Nov 10 | Mon | 3.4 Combinatorics and probability | |
| 19 | Nov 12 | Wed | 5.1 Simple interest, Review | HW #7 |
| 20 | Nov 17 | Mon | QUIZ 3, then 5.2 Compound interest | HW #8 |
| 21 | Nov 19 | Wed | 5.3 Annuities | |
| 22 | Nov 24 | Mon |
5.4 Amortized Loans |
HW #9 |
| 23 | Nov 26 | Wed | 8.1 Perimeter and Area | |
| 24 | Dec 1 | Mon | 8.9 Fractal Geometry, Review | HW #10 |
| 25 | Dec 3 | Wed |
QUIZ 4, then
12.0 Review of linear inequalities |
|
| 26 | Dec 8 | Mon | 12.1 The geometry of linear programming | HW #11 |
| 27 | Dec 10 | Wed |
12.1 Linear programming, Review Review sheet |
|
| 28 | Dec 15 | Mon | Review for the final Student survey |
|
| Dec 22 | Mon | Final Exam: 10 -- 11:50 | ||