Instructor: Suman Ganguli

Author: Suman Ganguli (Page 10 of 19)

Open Thread: Post Helpful Links!

Since some of you have come across useful links/videos that might help others in the class, I thought I would create a post where we can share helpful links.

So: if you have come across a link that you’ve found useful for our course (e.g., a YouTube video, a KhanAcademy quiz, etc), please post useful links as comments to this post (please include also a 1-sentence description of the content of the link and/or why you found it useful!)

(See my first comment below for an example.)

Note: each link you post at any point before the end of the semester will count as 1 participation point toward the Participation component of your course grade.

Class #24 Agenda (Tues Oct 26)

Class Info

Topics

  • Finish graphs of quadratic polynomials (OpenStax: Section 9.7)
    • “Transformations” (vertical & horizontal shifts) of parabolas
    • Examples from WebWork
  • Introduce the distance formula & equations of circles
  • Discuss Quiz #3

To-Do After Class

  • Work on Quiz #3 (due Friday 5pm)
  • Work on on WebWork sets re parabolas: “ParabolaLab”, “ShiftingParabolas”, “ParabolaVertices-CtS” (due Mon Nov 1)

Class #23 Agenda (Fri Oct 22)

Class Info

Topics

  • Cont’d from yesterday: Graphs of quadratic polynomials ( y = ax^2 + bx + c )
    • parabolas – “symmetric open U shape”
    • the vertex ( x = -b/2a )
    • the y-intercept ( at y = c, i.e, at the point (0, c) )
    • the x-intercepts (solve ax^2 + bx + c = 0 )
      • the zeroes (the “roots”) of a quadratic polynomial = x-intercepts of the corresponding parabola!
    • see OpenStax Sec 9.6
    • “Transformations” (vertical & horizontal shifts) of parabolas
      • see OpenStax, Sec 9.7

To-Do After Class

  • Join peer-led tutoring session with Nojm Ahmed (12-1p via Zoom)
  • Finish WebWork set: “ComplexNumbers” (due tonight, Fri Oct 22)
  • Start on WebWork sets re parabolas: “ParabolaLab”, “ShiftingParabolas”, “ParabolaVertices-CtS” (due Thurs Oct 28)
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