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  • 24
    Keyword: ...Meaningful learning; secondary education; chemistry teaching; stoichiometry; virtual learning...
  • 25
    Keyword: ...Meaningful learning; secondary education; chemistry teaching; stoichiometry; virtual learning...
  • 26
    Keyword: ...Meaningful learning; secondary education; chemistry teaching; stoichiometry; virtual learning...
  • 27
  • 29
    Authors Jaimes- Ojeda, Ludy
    Published 2017-07-01
    Keyword: ...problem-based learning, collaborative learning, chemistry teaching, collaborative work...
  • 30
    Authors Jaimes- Ojeda, Ludy
    Published 2017-07-01
    Keyword: ...problem-based learning, collaborative learning, chemistry teaching, collaborative work...
  • 39
    Description: ... according to the Analyti- cal Chemistry Official Association. Microbiological characteristics were...