Albert Powers, science high-school teacher, Concord, MA:
“My favorite vignette is one that occurred while three girls were working in a chemistry lab predicting shifts in reaction rates, concentration, and mass action values as a chemical system is repeatedly stressed. I overheard one student ask her partner what would happen if they plotted all of these variables together on a single graph. Her partner said, ‘Let’s do it!’.... and they did. Upon observing the graphs evolving together, one said, ‘What a mess!’ Her partner then exclaimed, ‘But look! Everything’s happening at once!’ This last remark piqued my curiosity. I asked her what she meant by it. Her reply: ‘First we studied rate changes. Then we looked at concentration changes. Then we did the mass action behavior. I thought that first one thing happened… then the next: and then the next. But it all happens at once! Everything depends on everything else!’
“Here we had a linear thinker who made a quantum leap towards more systemic thinking. It’s interesting to note that her overall class performance also took a quantum leap from that moment forward (C all the way to an A)."
Am I right that HS chemistry does not (has not?) focused at all on *dynamics*, e.g., actual behavior-over-time in chemical reactions?
If so, I’d say the chemistry teachers are right — adding dynamic simulations to the chemistry curriculum would add content not previously part of HS chemistry and thus would create problems for them. Something would have to go to create space for dynamics.
Dynamics are much more vivid and addressable in HS physics, biology and ecology. Dynamic simulation really can save time and increase insights in those subject areas. Chemistry, however, has always proved tough for us, I believe. (Is that right?)
…George
On May 25, 2015, at 12:32, Darkow, Jon <xxxxxx@SE-TIGERS.COM> wrote:
Richard,Great idea!Let me focus on HS.
To be clear with everyone, within the NGSS there are a total of:14 - Discipline Core Ideas for Life Science12- Discipline Core Ideas for Physical Science12 - Discipline Core Ideas for Earth and Space Science3 - Engineering, Technology, and Applications of Science
Having 1 model focus on 1 Discipline Core Idea (DCI), 1 CCC, and 1 Scientific and Engineering Practice (SEP) should be straightforward.For Life Science there are 12 Discipline Core Ideas. If 12 models were made per DCI, each focusing on a different CCC and Scientific Practice, the program would easily address what the authors of NGSS want: 3D learning of Core Ideas, Crosscutting Concepts, and Scientific/Engineering Practices.
Cheers!
On Mon, May 25, 2015 at 12:25 AM, Richard Turnock <xxxxxx@comcast.net> wrote:
>>>>>>>>>>>>>>>>>>>>>>>>>>>>On May 24, 2015, at 1:22 PM, Darkow, Jon <xxxxxx@SE-TIGERS.COM> wrote:
Are you asking how can teachers use dynamic modeling, causal loop diagrams, and/or stock and flow diagrams to address these 7 CCC?
Hi Jon,
Thank you for jumping in with so much detail and specifics. I really appreciate the information and am in the process of saving, labeling, organizing and packing the information that you have provided.
Well, more like How do you communicate with decision makers, non-users, administrators, State Dept of Ed staff, and parents, and the media about WHY teachers should be using dynamic modeling, etc to address the CCCs and NGSS?
"If your goal is getting teachers to use system dynamic models to save them time, my suggestion would be having teachers use pre-existing models. I have found creating models, and having students creating models is labor intensive, involving lots of time experimenting, reading, and researching.”
Excellent. I’m dreaming of a small, special team of students and teachers focused on producing models that can be packaged to address the CCCs and at the same time the Disciplinary Care Ideas. Then teachers can use pre-existing models in a broad classroom environment.
Maybe what I need to do is write a Project Proposal, just like a grant request, laying out all the justification as if I was asking for money to useSTELLA to support implementing NGSS, the CCCs and at the same time the other two dimensions. That would force me to document and reason through the whole thing and to answer the 20 WHY? questions I will get.
Let’s keep talking Jon.Thanks
--
Jon Darkow
Science TeacherSeneca East Local Schools13343 E US 224Attica, OH 44807Website: tinyurl.com/mrdarkow
This e-mail message, from Seneca East Local Schools, including any attachments, is for the sole use of the intended recipient(s) and may contain information that is privileged, confidential and/or exempt from disclosure under applicable law.
If you are not the intended recipient or authorized to receive information for the recipient, you are hereby notified that any review, use, disclosure, distribution, copying, printing, or action taken in reliance on the contents of this e-mail is strictly prohibited.
If you have received this communication in error, please immediately contact the sender and destroy the material in its entirety.
This email and any response to it is being archived for later retrieval and may constitute a public record and therefore may be available upon request in accordance with Ohio Public Records law (ORC 149.43).