Alert!

Hello, reader! If you intend to post a link to this blog on Twitter, be aware that for utterly mysterious reasons, Twitter thinks this blog is spam, and will prevent you from linking to it. Here's a workaround: change the .com in the address to .ca. I call it the "Maple Leaf Loophole." And thanks for sharing!

Tuesday, August 23, 2011

Linear Equations Review Lesson for Algebra 2

So, I just spent two days making one lesson for one class! Yeah, this does not bode well for this year. This pays serious homage to the PCMI problem sets by Bowen Kerins and Darryl Yong, who I already know are way funnier than I will ever be.

The goals for the lesson are the students remembering and being able to... (NB, they should already "know" all this from their previous Algebra 1 and Geometry courses)
  • Explain the meaning of all the terms in slope-intercept form
  • Write equations of horizontal and vertical lines and know how their slopes work
  • Sketch the graph of a line given various kinds of information about the line
  • Interpret point-slope form
  • Write the equation of a line in point-slope form given its slope and a point on it
  • Find the slope of a line given two points on the line, or its graph, or its equation in either form
  • Know how slopes of parallel and perpendicular lines work
Open questions
  • Is this too ambitious and going to scare the bejeezus out of the poor summer-addled adolescent brains?
  • How am I going to assess who knows what as the students are working?
  • What's the best way to organize the kidlets so that they might benefit from some cooperation? I'm thinking groups of three or four with minimal guidance about how they "should" work together.
  • Aside from the lame jokes in the marginal notes, how can I bring more joy into this exercise?
  • Are there better ways to ask any of these questions that make them more tangible?

As always, I welcome your thoughts. 

So...I had the first version here? But because of box.net's helpful versioning, it's no longer available. The latest version is posted here.