Reflection: Standards Alignment Finding Equations of Parallel and Perpendicular Lines - Section 3: Matching Activity


This activity took me two days and I probably could have spent another day (or two).  Challenges due to the transition to the Common Core were quite evident in this lesson.  I really like the multiple ways students have to look at lines to find matches.  However, it does require being able to understand the properties of and algebraically manipulate lines at a mastery level.  My current students were not at this level.  Next year, I will definitely pre-test my students carefully and spend extra time if needed.  Hopefully the need for this will lessen as students come with several years of Common Core instruction under their belt.  This need will never completely go away in our current Algebra 1, Geometry, Algebra 2 sequence because students lose mastery with the geometry interruption between Algebra 1 to Algebra 2.

Student Group 1 is a sample of the work I received.  Some questions were left blank (time issues). These particular students showed some conceptual understanding in the problems they did answer but didn't quite make it each time.  Most groups had only one or two matches correct and missed the rest.  I did however have a couple of groups in each class that were quite successful overall.  

I think that dealing with student gaps during the transition to Common Core will be one of the biggest challenges over the next couple of years.  On the other hand, this is why we are professionals.  We are each trained and capable of deciding what is needed for each particular group of students.  

  Standards Alignment: Remembering Lines... or Not
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Finding Equations of Parallel and Perpendicular Lines

Unit 2: Modeling with Functions
Lesson 5 of 24

Objective: Students will be able to determine whether find lines are parallel, perpendicular or neither and use their understanding of parallel and perpendicular linear equations to context of a rectangle.

Big Idea: Using slope properties to write linear equations for parallel and perpendicular lines.

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2 teachers like this lesson
Math, graphing equations, Algebra, linear functions, perpendicular lines, Algebra 2, master teacher project, Parallel Line
  54 minutes
student work 1 parallel and perpendicular
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