This lesson serves as a review of Unit 1 in two parts.
For the first part of the lesson students perform a lab. Students have a chance to practice the concepts that they have learned regarding the scientific method, measuring, significant figures, dimensional analysis, and density.
Because students are preforming and experiment, collecting data, and analyzing their results they use Science and Engineering Practices 3: Planning and Carrying out Investigations and 4: Analyzing and Interpreting Data.
There are several resources used for the lab. For each group I provide:
For the second part of the lesson students are completing a unit 1 exam review paper to help them study for their exam. This paper is a review of all of the concepts from the unit.
To begin the lesson and refresh students' memory on density I have them do a quick review of density including how to calculate density and how relative density determines if substances float or sink in each other.
I pass out the paper and give them about 5 minutes to work on it on their own.
When all students are done I go over the answers using the answer key.
Because we had just reviewed the homework from the previous lesson I do not take the extra time of going over in detail the rationale behind the answers.
I use examples that are related to the examples that we did in class the previous lesson (Unit 1 lesson 7).
This lab serves as a lab review of the unit and prepares students for the Performance Task portion of their exam. In the lab students identify an unknown metal through calculating density. This is a formal lab where students will be writing out information on a separate sheet of paper to turn in.
The final part of the lesson is where students are preparing for the exam.
Students are first expected to make sure that their binders are organized for their binder check which I do at the exam (see reflection on binder check)
Students are also expected to begin to work on the Unit 1 Exam Review Worksheet. They can work either on their own or with partners.