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→How do we know the student understands?
*subtraction can be determined if for > 70% of the questions the student initially over-paid, they immediately follow up with a correct payment.
*subtraction can be determined if for > 70% of the questions the student initially over-paid, they immediately follow up with a correct payment.
*If a student overpays and then increases their payment, or underpays, followed by an even lower payment it can be inferred the student does not understand the concepts of addition or subtraction with money.
*If a student overpays and then increases their payment, or underpays, followed by an even lower payment it can be inferred the student does not understand the concepts of addition or subtraction with money.
**If for > 20% of the questions the student makes this mistake. He or she gets a "no" for addition and subtraction.
**If for > 10% of the questions the student makes this mistake. He or she gets a "no" for addition and subtraction.