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CIRCA 1960s - A teacher explains to her students why the are more sperm to egg cells produced.
Usa - 1947 - middle school students ask a range of questions in a sex ed class.
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CIRCA 1960s - Students discuss the reproductive functions of sperm and eggs in 1962.
Usa - 1954 - dean emeritus loren miller looks at science projects and presents a pin to a high school student in the junior engineering technical society in in east lansing, michigan.
Usa - 1947 - after screening a sex ed film, a teacher asks her middle school class about when human growth begins.
USA - 1958 - Secretaries think their boss is wasting time talking to a colleague about models when really they're discussing designs for the company.

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3438454515
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ID Video Stok: 3438454515

Usa - 1947 - a middle school teacher answers a student's question about why there are many sperm cells to one egg cell.

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  • 1:11

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