1) Performance on the pre-lecture online quiz
2) Performance on the in-class activity (clicker scores or hand-graded worksheet)
Students generally score on average 70% or higher on the pre-lecdure quiz, and on average 70% or more of students correctly answer the in-class clicker questions. As noted in the worksheet answer key, question #4 generally gives students the most trouble as they may not yet have learned how to sum a series of reactions to yield an overall reaction. Instructors are encoruaged to do an example of this in the acitivty introduction.
This is a flipped classroom activity intended for use in a first semester general chemistry course. Students are expected to have prior knowledge in determining the molar mass of compounds, how to carry out mole/gram conversions, and how to write balanced chemical reactions. The activity includes: 1) pre-lecture learning videos that guide students through carrying out basic stoichiometric calculations, determining the limiting reactant, and determining the percent yield of a reaction; 2) a pre-lecture interactive tutorial that helps students learn the concept of limiting reactant; 3) pre-lecture quiz questions; and 4) an in-class activity that requires students to apply their knowledge of stoichiometry and limiting reactant in the real-world application of converting coal to liquid fuel.
Students are expected to complete the following learning objectives:
a) using mole-gram conversions and mole-mole conversions to carry out stoichiometric calculations for balanced chemical reactions;
b) gaining appreciation for how stoichiometric calculations are used in real-world chemical reactions.
Prior to completing this activity, students will be expected to have learned how to use molar masses of elements and compounds to carry out mole-gram conversions, how to balance chemical reactions, and how to use balanced chemical reactions to carry out mole-mole conversions.
1) online test/quiz function in course management system
2) in-class response system (clickers)
Attached as separate file.