FLIPPING OR FLOPPING IN A GENERAL EDUCATION EARTH SCIENCE CLASS
1996 ◽
Vol 44
(2)
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pp. 197-201
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Keyword(s):
1950 ◽
Vol 50
(3)
◽
pp. 221-221
2013 ◽
Vol 34
(4)
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pp. 345-355
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Keyword(s):
2010 ◽
Vol 31
(6)
◽
pp. 637-646
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Keyword(s):
1990 ◽
Vol 105
◽
pp. 57-61
2009 ◽
Vol 33
(1)
◽
pp. 122-132
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Keyword(s):