Reflection: Routines and Procedures Acid and Base Scientific Explanation Lab - Section 4: Evaluate


Over the years I have found that rubrics are an awesome tool for grading labs in chemistry.  There are several reasons why I feel this way.

  1. Rubrics are a great way to clarify what I expect from students in a lab.
    • This is an example of a rubric which I attached to the bottom of the lab so students know what is expected of them BEFORE they turn the lab in.
  2. Rubrics take time to make, but once they are complete I can grade a lab very quickly by simply checking or circling boxes in regards to where students fall on the rubric.  
    • See this Example of how I do this.  Notice how I circled each box in terms of how students did with various components of the rubric.
  3. Students are able to use the rubric to reflect on how they did on the lab and hopefully improve their work for next time.  
    • For example on his lab this student did very poorly because he was missing a complete procedure (didn't give steps that someone else can follow), missing parts of his data table (details of the tests and observations), does not have a complete and accurate claim about acids, missing complete and evidence and does not use reasoning.  If the student wants to know how to improve his lab writing he could look at the rubric to see where he missed his points and then know what to change for next time.

  Routines and Procedures: Rubrics for Grading
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Acid and Base Scientific Explanation Lab

Unit 7: Unit 8: Water Quality
Lesson 9 of 11

Objective: Students will be able to explain which of four unknown solutions are acids through performing a lab activity.

Big Idea: There are multiple ways to test a solution to determine whether that solution is considered an acid or base.

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7 teachers like this lesson
Science, Chemistry, Acids and Bases, solution, water
  80 minutes
acid explanation lab
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