Determining Mantle Temperature and Composition from Discontinuities --Discussion http://serc.carleton.edu/NAGTWorkshops/deepearth/activities/40430.html#discussion This activity is ... http://serc.carleton.edu/NAGTWorkshops/deepearth/activities/40430.html#post7244
Anna Courtier 1267028340 http://serc.carleton.edu/NAGTWorkshops/deepearth/activities/40430.html#post7244
(1)Are the ... http://serc.carleton.edu/NAGTWorkshops/deepearth/activities/40430.html#post7247
Seems to be. Something that might also be interesting to include is the difference between passive and active upwellings. There's a nice mantle dynamics in there too. Follow up maybe with why wouldn't you expect a deep thermal anomaly associated with ridges, etc.

(2)Does the activity capitalize on pedagogy that promotes learning?

this is harder for me to evaluate. Seems like it'd be hard to tell until you actually try it. You just never know what students are gonna get jazzed about or not.

(3) Are the materials provided for students complete and helpful?

yep

(4)Could this activity be easily used by someone else as it is presented?

I just may use it in the coming weeks!
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Catherine Cooper 1267028700 http://serc.carleton.edu/NAGTWorkshops/deepearth/activities/40430.html#post7247
I think the ... http://serc.carleton.edu/NAGTWorkshops/deepearth/activities/40430.html#post7254
Here are some comments/suggestions for improvement on the Temperature activity:

You might want to say something about where 1350 C comes from for the average earth case.

Change "more complicated than that..." to "more complicated than that, with systematic variations in the depth of both the 410- and 660-km discontinuities.

I would put the Hawaii names in parenthesis into a column underneath "Hawaii (Hotspot)" in the table, leaving just the TZ thicknesses in a column by itself.

I would suggest 2 small maps (EPR and Hawaii) at the bottom of page 2 to help with interpretation of different sample points.

For question 6, do you mean "Are the temperatures beneath ridges similar..."

To help gauge if this activity is having an impact on students, you might consider some pre-class questions like: Are the temperatures beneath ridges and hot spots similar or different? How so? What is the evidence for this conclusion? How confident are you in this conclusion?
You could then compare their results after the activity to see how much change there is in the understanding, their ability to justify it, and their confidence in it. For that last point, you might add a question towards the end of your in-class activity that asks them how confident they are in the difference between hot spots and ridges and what the reasons are for their confidence level.
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Mike Brudzinski 1267029780 http://serc.carleton.edu/NAGTWorkshops/deepearth/activities/40430.html#post7254
This is an ... http://serc.carleton.edu/NAGTWorkshops/deepearth/activities/40430.html#post7264
1. Are the activity and its assessment well aligned with the intended goal of the activity? In particular, will the activity lead to the desired learning? Are the assessments such that the instructor will be able to tell if this learning occurred?

Assuming assessment will be performed via grading the handout - yes.
2. Does the activity capitalize on pedagogy that promotes learning?
It looks good from here - a classroom run will give the most definitive answer. If often depends upon the classroom dynamic.
3. Are the materials provided for students complete and helpful?
They are superb - but see comment above regarding maps. Presenting a good geographic context is very helpful.
4. Could this activity be easily used by someone else as it is presented?
Yes
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Glenn Richard 1267031100 http://serc.carleton.edu/NAGTWorkshops/deepearth/activities/40430.html#post7264
This is great! I ... http://serc.carleton.edu/NAGTWorkshops/deepearth/activities/40430.html#post7302 Pamela Burnley 1267035540 http://serc.carleton.edu/NAGTWorkshops/deepearth/activities/40430.html#post7302 Anna:<br /> <br /> ... http://serc.carleton.edu/NAGTWorkshops/deepearth/activities/40430.html#post7527
See my comments above. This is an excellent activity. The maps of Hawaii and the EPR are good for geographic/geologic context.]]>
Glenn Richard 1267202700 http://serc.carleton.edu/NAGTWorkshops/deepearth/activities/40430.html#post7527
Hi Anna, I may ... http://serc.carleton.edu/NAGTWorkshops/deepearth/activities/40430.html#post7531 Dave Mogk 1267202820 http://serc.carleton.edu/NAGTWorkshops/deepearth/activities/40430.html#post7531 Thanks for all the ... http://serc.carleton.edu/NAGTWorkshops/deepearth/activities/40430.html#post7549 Anna Courtier 1267206780 http://serc.carleton.edu/NAGTWorkshops/deepearth/activities/40430.html#post7549 Dave, The ... http://serc.carleton.edu/NAGTWorkshops/deepearth/activities/40430.html#post7551 http://adsabs.harvard.edu/abs/2007E&PSL.264..308C]]> Anna Courtier 1267208880 http://serc.carleton.edu/NAGTWorkshops/deepearth/activities/40430.html#post7551