Schedule for Math 261: Introduction to linear algebra (Section 003), Spring 2025 (CRN 61723)

Week One (2025-3-31 and 2025-4-2)

Sections 1.1–1.3.

Week Two (2025-4-7 and 2025-4-9)

Sections 2.1–2.4.
Quiz One is on 2025-4-9.
Here are solutions to Quiz One.

Week Three (2025-4-14 and 2025-4-16)

Sections 2.3–2.6.
Quiz Two is on 2025-4-9.
Here are solutions to Quiz Two.

Week Four (2025-4-21 and 2025-4-23)

On 2025-4-21, we will finish up previous sections and have a review. Please send questions before class.
Here is an old midterm for review.
Here are answers for the old midterm.
Exam One is on 2025-4-23.
Here are answers for Exam One.

Week Five (2025-4-28 and 2025-4-30)

Sections 3.1, 3.2, and 4.1.

Week Six (2025-5-5 and 2025-5-7)

Sections 4.2, 5.1, and 5.2.
Quiz Three (covering Sections 3.1, 3.2, and 4.1) is on 2025-5-7.
Here are solutions to Quiz Three.

Week Seven (2025-5-12 and 2025-5-14)

Sections 5.3, 5.4, and perhaps 3.3.
Quiz Four (covering Sections 4.2, 5.1, and 5.2) is on 2025-5-14.

Week Eight (2025-5-19 and 2025-5-21)

Midterm Two is on 2025-5-21.

Week Nine (2025-5-28)

Week Ten (2025-6-2 and 2025-6-4)

Quiz Five is on 2025-6-4.

Finals Week

The final exam is on Wednesday 2025-6-11, at 12:30pm–2:20pm, in our regular classroom.