Iron smelting jigsaw activity

Iron smelting jigsaw activity
jigsaw activity in iron smelting in Africa

File 14834 is a 90kB Acrobat (PDF)
Uploaded: Feb24 09
https://serc.carleton.edu/download/files/14834/iron_smelting_jigsaw_activity.pdf

The file is referred to in 2 pages
Provenance
Barb Tewksbury, Hamilton College
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