Appropriate Quantities && Measurement
To begin, we will do an activity called "Believeable or Inconceiveable," where the students stand in the center of the room, one side of the room is designated for "Believeable" and the opposite side of the room is designated for "Inconceiveable." I provide the students with multiple scenarios (e.g. measuring the amount of water in a swimming pool in gallons?), one at a time, and the students choose whether they believe that is 'believeable' or 'inconceiveable' and then walk to that side of the room. Once all students have chosen their side, a few students from each side provide their reasoning behind their choice and the other students can debate back and forth why one choice is better than another.
2 Direct Instruction
There is a video that clearly states the objective/concept and presents by leading with examples. This particular video provides the students with scenarios and gives them time to brainstorm various units and then follows up with reasonable units and explanations of where those came from. It provides concrete examples of the thought-processes involved with choosing appropriate units by defining quantities based on a real-world situation.
3 Guided Practice
Students will use the IXL Math app on the iPads in order to pratice choosing appropriate units and then reflecting on those choices and asking if their choice is appropriate based on various real-world scenarios. When the scenario changes, the students have to determine if there is a need to choose a different unit of measurement. This app allows students to practice and then review their progress to monitor their level of understanding. Since we will be using this app in the classroom, the students have the ability to ask me any questions they have as they work through the practice problems.
4 Independent Practice
Students will be given a list of real-world scenarios and will have to choose one to determine the appropriate quantities that they would measure to achieve their task. Students will focus on the relevant attributes in the given situation and create or choose suitable measures for them. They will need to provide a rationale for any quantities they pick and explain why the number of quantities they pick are sufficient for their task. They will also provide at least one example of a quantity considered, but discarded and why they discarded it. This can be presented in any way including a typed paper, Prezi, PowerPoint, etc. (the presentation format must be approved by me prior to finishing the assessment). This will be assessed using a rubric.
In groups, the students will be making silent films (like the original silent films) portraying how to choose appropriate units by defining quantities based on real-world situations. They must present a real-world "problem" that requires some type of measurement, provide examples of incorrect units of measurement, and finally, appropriate units and how they came up with those based on their particular scenario.