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Online Lab Submission Students:
Interactive Animations:
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iTRQ - Limiting Reagent Calculations The process by which one calculates the limiting reagent, theoretical yield and excess reagent must be revisited periodically to keep this ability in the student's long-term memory. While this has traditionally been accomplished with untimed homework problems, the proliferation of sites that provide solutions to homework problems has resulted in some students getting the correct answer without altering their long-term memory. In collaboration with Chem21Labs users, we have created iTRQs (interactive TRQs) where students perform a series of steps in a span of time (e.g. 50 - 200 seconds) that is much longer than the normal TRQ time of 5 - 9 seconds per question. If students can correctly answer the question before a timer reaches 0 seconds, they will have completed the assignment. If they don't answer the question correctly, they are guided through the individual steps of the calculation with immediate feedback at each step. Students receive full credit on this iTRQ if they . . . .
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