Howard Community College: Using the TIDeS module in PHYS 106- Earth and Space Science
Beth Dushman, Howard Community College
Why I Revised My Course
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Provenance: Beth Dushman, Howard Community College
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About the Course
PHYS 106- Earth and Space Science
Level: Most students take this course to fulfill a general education requirement. A few students take it as a requirement for an education major. Most classes have a large variety of student majors. As HCC does not have a geology or meteorology program, there are no majors, and very, very few students who intend to continue on in Earth Science. Occasionally, students will take the course and then decide to focus on an Earth Science program when they transfer.
Size: 24 students
Format: 2 lecture sessions, 80 minutes each and one 3-hour lab per week
PHYS 106 Earth and Space Science is a 4-credit, combined lecture and lab introductory course that explores topics in Geology, Meteorology, and Space Science. The course fulfills a general education science class and is required for some education majors. The overall course goal is to improve students' comfort with science and for students to recognize the importance of Earth science in their everyday lives.
Syllabus for PHYS 106 Earth and Space Science (Acrobat (PDF) 397kB Sep20 24)
The original course fell into the common trap of providing a huge amount of information without asking students to engage in the process of science themselves. In this new version, students engage with scientific practices, ask questions, and analyze data many times throughout the semester, helping them to build confidence in their ability as scientists and teachers. We hope that through the TIDeS curriculum, students will feel more comfortable engaging in, and eventually teaching, the basics of science. We use real-world data and place-based examples to motivate students to learn about locations and issues that they care about, bringing science into their lives instead of thinking about abstract concepts.
The TIDeS labs were a useful learning tool which took the lessons from lecture and gave an understandable context for them. They were most beneficial for my learning due to the high amount of student participation and engaging discussion.
My Experience Teaching with TIDeS Materials
I ended up mostly using these activities in lab, with a few of them in lecture. Overall, though, I found that I needed to do some more traditional lecturing (although I tried to break it up to smaller chunks) to get students up to speed for each activity.
A Unit-by-Unit Breakdown of How I Taught this Module
Unit 1
- 1.1 Students got really into the making observations and interpretations exercises, and it was a great introduction to the semester because students are using critical thinking and also getting satisfaction out of making interpretations. It's a good way to build confidence and group cohesion early in the semester.
- 1.2 Students had variable experiences with the Visionlearning readings. Many students struggled with the language, so for faculty who teach at open-enrollment schools or have many English language learners, this may be a frustrating activity. For students with very strong reading comprehension skills and who were already excited about science, the Visionlearning readings provided interesting case studies. I used this for two semesters but now have students examine the process of science using the UCMP Understanding Science 101 website, which is written at a more accessible level.
- 1.3 Students liked choosing their own locations, although some struggled to create good scientific questions. However, that led to good group discussions about what types of questions could be answered by scientific studies.
Unit 2
- 2. 1 Making observations from maps: Students do best when they are reminded that they are making observations only and not interpretations at all. I went through some examples with the class to provide them with suggested vocabulary. Students tend to use temporal language ("sporadic") instead of spatial language ("linear," "clustered" "widely distributed") so giving examples helps.
- 2.2 The UNAVCO/Earthscope online tools are helpful but take some time for students to get comfortable with. We started the plate motion calculations together in class to build confidence. I recommend clarifying the data used/frames of reference (I had students use rolling chairs and stationary desks to demonstrate frames of reference the second semester). We did not do the activity with predicting future plate arrangements.
Unit 3
- 3.1 We started with students making observations and their own classifications as practice before introducing the standard mineral classification. This ran as a pretty standard mineral and rock ID lab.
- 3.2 We started with the jigsaw in which students come up with necessary minerals for different sectors of society. This went pretty well, but students tended to Google search for components and would end up with some random answers/minor components. The Excel spreadsheet linked in the module has examples of common resources, so as to reduce the amount of internet searching necessary. However, the list is in no way comprehensive.
- 3.3 The worksheet has been revised since the last pilot. Students did well with matching current processes to resource formation but struggled with using geological maps to predict locations of resources.
Unit 4
- Overall: This unit has several great activities but I found I needed to do some more traditional lectures at the beginning to introduce key vocabulary and concepts.
- 4.2 We started with exploring the weather app, comparing and contrasting two places with different climates. Then we went outside to make observations of current weather conditions and talked about the background for each one while outside, but we did not have the necessary tools to take our own measurements (sling psychrometer, anemometer, etc).
- 4.3 Daily weather and climate normals
This activity has a lot of potential but my students needed a lot of guidance in both creating graphs and interpreting them. Next time I use this activity, I will ask students to articulate their predictions for what the data will look like before they graph it, and then ask them to give more detailed responses, as well as working through more examples in class.
Past weather data can also be downloaded from https://www.ncei.noaa.gov/access/past-weather/
- 4.4 Students read about severe weather as pre-work. Groups of students were assigned 2 types of severe weather, and used the linked websites to explore the distribution of the severe weather. We did not do the in-depth presentations as described in the module, but each group presented their key findings and scientific questions to the class.
We did a full-class summary of the key factors that contribute to severe weather. We also discussed severe weather events in the news at the time of the class. We completed the fire weather activity, and used data from my local region as a second example, as there happened to be a fire weather warning for my region the day we did this in class.
- 4.5 We did not do in my class.
- 4.6 and 4.7 we completed as described. Two recommendations for instructors: Really emphasize the need to explain why students chose their inputs for the NOAA graph, and consider having some students present their graphs and explanations, and have the class determine whether they provide relevant information for the question or not. When students complete their second hurricane damage model, be sure that they incorporate the information they learned throughout units 4.6 and 4.7 into their new model (otherwise the initial and final models might not be that different).
Unit 5
- We did not use materials from Unit 5.
Unit 6
- Unit 6.1 We did most of unit 6.1 as described.
- We did not do any other parts of Unit 6.
Assessments
Each TIDeS activity was graded according to the rubric on the worksheets. Most of them were used as lab activities, and some were in lecture class. I still gave traditional exams, but because there were more points available overall from the in-class activities, the exams were slightly lower stakes. Furthermore, all of the exams included open-ended questions where students were asked to share specific things they learned or found particularly useful or interesting. This gave the students a chance to reflect on what they learned and helped boost confidence in test-taking.
Outcomes
Student feedback showed that students felt much more comfortable with the processes of science and in their own ability to do science, which was the major outcome for the project. Student feedback also indicated that they recognized the importance of Earth Science in their non-academic lives and in local and global socioeconomic and geopolitical issues.