Chemical Primer (1884)
The Chemical Primer below was written in 1884, and from its instructions to teachers, you can definitely see an old fashioned teaching approach. Do not allow pupils lazily to pronounce the symbol or the formula instead of the name, i. e., wherever “H” occurs, see that it is called hydrogen Have the pupils copy the two Reference Tables (pp. 16, 29) upon cardboard, and allow them the free use of these for the entire term. Never compel them to memorize formulas, atomic weights, strength, etc. It is as important to know what not to remember, as to know what should
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Source: https://www.tngun.com/free-pdf-chemical-primer-1884/
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