• Anne Morgan

How and When to Use Lab Reports

I'm not sure that any high school science teacher would say she loves having students write lab reports. It's often a lot like getting your kids to eat their vegetables- you know it's good for them, but what a struggle to get them to do it! Add in the massive amount of grading on top of that and it's easy to see why many science teachers shy away from formal lab reports in their classes.

Writing a lab report can be a valuable skill in a science course, especially if you have college-bound students that will be going on to additional science courses. It is a cross-curricular pursuit that includes summarizing, writing, research, and math skills. However, lab reports are often used incorrectly in secondary science courses, so they end up being busywork for students and unnecessary grading for teachers.

When is a lab report appropriate:

  1. When students are working with self-determined variables, hypotheses, or experimental designs.

  2. When groups are testing different variables leading to one classroom result

When is a lab report not appropriate:

  1. When you are simply observing a specimen (through a microscope, in a dissection, etc.)

  2. When you are following a "cookie-cutter" lab from the textbook that provides every step for you.

If students are not forming their own conclusions based on data they've collected, there is no reason to write a formal lab report. That's why many of the labs I use in class contain just a simple worksheet with discussion questions for students to answer as they complete the lab. It is a rare occurrence in which I have students actually write a formal lab report but when I do, I spend the time necessary to train them to do it correctly.

I have a detailed document with explanations and examples for every section of a lab report. Allowing my students to see this ahead of time gives them a great starting point when writing their own lab reports. The document I give out is listed below so you can use it, too!

Another important note is that I grade multiple drafts of any lab reports I collect, especially the first one. Students usually need a lot of direction and redirection as they learn to complete this process properly. My class document includes two rubric examples that you can use to grade these lab reports. My favorite is the one that allows for self-reflection, peer review, then teacher review.

If you'd prefer some simpler worksheets for completing labs with your classes, check out my TpT store!

How to Write a Lab Report
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