Biodiversity: Can science save an ecosystem from extinction?

Middle School Life Science: Matter and Energy in Organisms and Ecosystems

MS:LS 2-1 Analyze and interpret data to provide evidence for the effects of resource availability on organisms and populations of organisms in an ecosystem.

If you've never looked into the Howard Hughes Medical Institute's (HHMI) BioInteractive site, NOW would be a great time to do so. This free website is such a wealth of information, ranging from data sets to lesson plans to short videos to full-on inquiry-based explorations. Each resource specifically is linked to current scientific research and provides students with tremendous insight into what science really "looks like."

My middle school class immediately dug into the citizen-science aspect of the WildCam Gorongosa activities. There's no better way to study an ecosystem than to immerse oneself in the trail-cam photos as if we were really there (since a field trip to Mozambique was out of the question)! I could see students at any level using the built in tools (as well as this Field Guide) to key out the different species they observed. As with any citizen-science program, the students felt pretty important when they learned that what they were doing would really be utilized by scientists studying the biodiversity of the area.

While we didn't complete the entire BioInteractive WildCam Lab, we did use several of the resources available (found in their entirety here) to look at how populations changed over time due to different habitat disturbances. It was a great way to not only introduce food chains/webs/pyramids, but to look at how these relationships were influenced when resource availability changed.

Link to Slides and Student Guide we used in class

One phenomenon... two ways

Choosing a good phenomenon to have students explain is a critical step in designing 3D lessons. Fortunately, the best phenomena can be used to address multiple Performance Expectations; it just depends on how you want to use them. Great phenomena can anchor lessons for multiple grade levels and subject areas.

https://www.dailymail.co.uk/sciencetech/article-2267504/The-sealed-bottle-garden-thriving-40-years-fresh-air-water.html

I was inspired to think about a lesson that would use this phenomenon when Saranac Middle School's Rebecca Shuman posted on Instagram about her students making these really cool biosphere ecosystems. (Secretly I just wanted to fill my classroom with cool stuff like this.) What I didn't realize at the time was that Becky had developed an awesome lesson sequence (called "There is no Planet B") with the biospheres as the culminating experience. Becky's biosphere lesson incorporates MS:LS2-1 and 2-3 and serves to compare the model biospheres to the closed system of the Earth as a whole.

In my classroom, we used our miniature biospheres as a model for the larger human-designed ecosystems such as Biosphere 2 and the eventual (?) biospheres used to colonize Mars or other distant places. (MS:LS2-5) We plan to observe the biospheres throughout the course of the school year to monitor changes and to model the matter and energy flow in the system.

Link to the Ecosystems in Space lesson

How do leaves change color in the fall?

Middle School Life Science

MS:LS 1-6: Construct a scientific explanation based on evidence for the role of photosynthesis in the cycling of matter and flow of energy into and out of organisms.

I've been looking for a good lesson to try out the Experimental Design & Report Sheet that Cookie Barker designed last year, and found it when thinking about the phenomenon of fall leaves. The series of lessons and investigations were really successful, and we stayed organized as a class for a whole week (due to an unfortunate series of fire drills interrupting class) thanks to Cookie's template.

Click here for a copy of the full lesson. 

Is DNA in our Food?

This slide show takes you through a 3D lesson where students plan an investigation to determine if food is a living thing.

How does cell structure and function impact an organism?

This post includes resources/ materials that comprise the cell organelle structure/ function part of the cell biology unit. This slide show covers two weeks of class lessons with an emphasis on differentiated instruction. It is very much a "work in progress"- some aspects are very 3D in their instructional style, and others have a ways to go.