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→How do we know the student understands?
===How do we know the student understands?===
===How do we know the student understands?===
* Since this activity only involves money (not raw numbers), and money independent of any actual real-world currency all results here allow us to conclude that the user understands the mathematical operation within the scope of currentcy
* Since this activity only involves money (not raw numbers), and money independent of any actual real-world currency all results here allow us to conclude that the user understands the mathematical operation within the scope of currency
* In this activity, the user has the option of presenting the computer with infinite responses, until the correct one is presented, at which point the activity moves on to the next "level." While this is sufficient for not discouraging the student, and allowing them to continue through the activity start to finish. It is NOT sufficient for determining a student's understanding of this particular curriculum requirement.