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Information shown for on this page is for 2019-20 semester, not for the current semester!
Math 9a, 2019-20
Room: EarthScience183
Time: Sunday 11:10AM - 12:40PM
Grades: 9-10
Prerequisites:
Material fee: $0.00
Homeworks
These homeworks are copyrighted material, posted here for use by
SchoolNova students and parents. Everyone else is welcome to print a copy of these materials for their personal use;
any redistribution or commercial use is prohibited
- Assigned on 09/15: Algebra. Baseline test. | Geometry. Baseline test. | Homework for Sep. 22 |
- Assigned on 09/22: Algebra. Elements of mathematical logic. | Geometry. Commensurate segments. | Homework for Sep. 29. |
- Assigned on 09/29: Classwork: Mathematical logic. Equivalences. | Homework: Homework for Oct. 6. | Classwork: Thales theorem. |
- Assigned on 10/6: Classwork: Mathematical Induction. Series. | Homework: Homework for Oct. 20 |
- Assigned on 10/20: Classwork: Geometry. Ceva theorem, similar figures, homothety | Homework: Homework for Oct 27 |
- Assigned on 10/27: Algebra classwork: Binomial theorem; arithmetic and geometric mean | Geometry classwork: Center of Mass | Homework: assignment for Nov 3 |
- Assigned on 11/3: Classwork - Geometry: Center of mass cont.; Menelaus and Pappus theorems | Classwork - algebra: Euclid's algorithm review; continued fractions | Homework: Homework for Nov 10 |
- Assigned on 11/10: Classwork: Algebra | Classwork: Geometry | Homework: Algebra and Geometry |
Today we discussed
Algebra: the basics of set theory, notations, countability of sets
Geometry: the inscribed angle theorem
- Assigned on 11/17: Algebra classwork: Set operations | Geometry classwork: Euler line, 9 point circle | Homework: problems for Nov 24 |
- Assigned on 11/24: Classwork: math battle |
There is no new homework, but you have to complete problems from previous assignments.
- Assigned on 12/8: Classwork. Algebra. : Equivalence relations and modular arithmetic. | Homework for Dec. 13.: Algebra only. |
- Assigned on 12/15: Classwork: Algebra. Sets: Injection, Surjection, Bijection. | Classwork: Geometry. The method of coordinates. | Homework.: Assignment for January 5, 2020. |
- Assigned on 01/5: Classwork: Algebra. Cardinality. | Homework: Homework for January 12. |
There is no new homework. Please complete the problems from the previous assignment, which are repeated in the posted homework.
- Assigned on 01/12: Classwork: Geometry. Ellipse, hyperbola, parabola. | Homework: Assignment for January 17. |
- Assigned on 01/19: Homework: Homework for January 26. |
No new classwork handout; material covered is in the handouts posted before.
- Assigned on 01/26: Classwork: Geometry. Inversion. | Homework: Homework for February 2. |
- Assigned on 02/2: Classwork: Geometry. Inversion. |
No new homework: continue working on the previous assignment on inversion geometry. Both homework and classwork handouts are repeated from the previous class. Please write down solutions to all exercises considered in class.
- Assigned on 02/9: Homework: Homework for Feb 23 |
No new classwork handout. Continue working on the Inversion Geometry handout.
- Assigned on 02/23: Classwork: Geometry. Curves of the second degree (continued). | Homework: Homework for March 1. |
- Assigned on 03/1: Classwork: Algebra. Irrational numbers. Dedekind cuts. | Classwork: Geometry. Laws of sines and cosines. Trigonometry. | Homework: Assignment for March 8 |
New homework and classwork posted. The old ones (Feb. 23) were posted as those of March 1 in error.
- Assigned on 03/8: Classwork: Algebra. Irrational numbers: exponents. | Classwork: Trigonometry. Trigonometric formulas. | Homework: Assignment for MArch 15. |
This is the assignment for March 15. It is likely that next week's class will be cancelled and we will be working on setting up online classes so as to reduce the probability of the virus spread. Please work on the homework anyway - having two weeks would let you solve more!
I will be sending the Google classroom invitations to all of you shortly.
- Assigned on 03/22: Classwork: Geometry/trigonometry | Classwork: Algebra. Polynomials. | Homework: Assignment for March 29. |
- Assigned on 03/29: Classwork: Algebra. Polynomials. Vieta theorem. | Classwork.: Geometry. Vectors. Trigonometry homework review. | Homework: Assignment for April 5. |
- Assigned on 04/5: Classwork: Algebra. Functions, graphs, exponential, log. | Classwork: Geometry. Vectors. | Homework: Assignment for April 12. |
- Assigned on 04/19: Classwork: Geometry. Vector problems and center of mass. | Classwork: Algebra. Complex numbers. | Homework: Assignment for April 26. |
- Assigned on 04/26: Classwork: Geometry. Vector problems. | Classwork: Complex numbers. Complex plane. De Moivre. | Homework: Assignment for May 3 |
- Assigned on 05/3: Classwork: Algebra. Complex numbers. Cardano formula. | Classwork: Geometry. Vector problems. | Homework: Assignment for May 10. |
- Assigned on 05/10: Classwork: Inclusion-exclusion principle. Derangements. | Homework: Assignment for May 17 |
- Assigned on 05/17: Classwork: Math 9 Final Math Battle |