Reflection: Routines and Procedures Dimensional Analysis - Section 4: Elaborate part I


The goal of partner appointments is to allow students to have extra practice of problems, but in an engaging, productive manner.  Students are able to work with their peers to better understand the concepts, in this case dimensional analysis.  I find that this is especially helpful for my English Learner students who tend to partner with students who can help explain the process in Spanish.

When I have students do partner appointments the begin by making appointments for each problem (in this case problems A through D).  I give students a few minutes to find partners and write down the partners name next to the appt letter.  I then play "matchmaker" and have students raise their hands if they are missing any appointments and match them up.  If it is an odd number class then I have one group of 3 for each appt. (see this class video as an example of how I do this in my classroom).

When the activity starts I remind students that the goal is to work with their partners to solve the problems and that they should make sure that both themselves and their partner can explain to me how they solved the problem. 

I then have students go to their first appointment (in this case appointment A) and show the first problem on the board.  I have them write down the problem and then solve with their partners.  Depending on the problem I give them about 5 minutes to work with their partners.  The first problem usually takes the longest, but as they get the hang of DA, it becomes easier so takes less time.

As students work I walk around and make sure they are working together.  If a lot of groups are confused I begin to solve the problem on the PowerPoint by underlining, circling, and then starting the DA problem.  As most students are completing the problem, I go over the answer to the problem and have them all check their work.

When student are done with the first problem I have them thank their partner and have them go to their next appointment and continue until we have completed all appointments.

  Routines and Procedures: Partner Appointments
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Dimensional Analysis

Unit 1: Unit 1: Working as a chemist
Lesson 7 of 9

Objective: Students will be able to perform basic dimensional analysis problems, including the use of metric prefixes, by taking notes, solving practice problems, and engaging in a lab activity.

Big Idea: Dimensional analysis is a great tool for solving problems and converting units in chemistry.

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Science, Chemistry, Scientific Method (Science Skills), dimensional analysis, culture
  110 minutes
da ex 2
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