Type:

Other

Description:

I order a lot of shells (online from SeaShellCity.com) and the students make their own limestones. We put the shells in portland cement (in large square ziploc containers); let them harden for a week, then cut them on the rock saw. I have done this in a few ways. Simple way for 3D reasoning: have students make a predictive sketch of what their limestone will look like cut. Then grade the accuracy of their prediction (award a prize). Elaborate way for 3D reasoning, taphonomy and paleoenvironmental reconstruction: I sometimes provide the class with a carbonate shelf facies model (with a slide show from my own research), and have them work in teams, select an environment (from a map provided), research what benthos might live in that environment, then order shells of the calcareous ones, break those shells if necessary, and finally build a rock from the shells + portland cement. It really teaches taphonomy (especially comparing who lives in the environment vs. who makes it into the fossil record). Often, I then have the teams swap their rocks, and cut and interpret another team's rock.

Subjects:

    Education Levels:

    • Grade 1
    • Grade 2
    • Grade 3
    • Grade 4
    • Grade 5
    • Grade 6
    • Grade 7
    • Grade 8
    • Grade 9
    • Grade 10
    • Grade 11
    • Grade 12

    Keywords:

    Vocational/Professional Development Education,Higher Education,NSDL,Undergraduate (Upper Division),Undergraduate (Lower Division),Paleoecology,NSDL_SetSpec_380601,Paleoenvironmental Reconstruction,oai:nsdl.org:2200/20100502200924670T

    Language:

    English

    Access Privileges:

    Public - Available to anyone

    License Deed:

    Creative Commons Attribution Non-Commercial Share Alike

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