From: Concerned Teacher
To: Teacher2Teacher Public Discussion
Subject: Re: Criss-cross method = Garbage
This Criss-cross method for adding fractions is trash and will only serve to confuse. It does not teach any concept at all. Students need to multiply each fraction by the correct fraction that equals 1. It is SO IMPORTANT that students learn the underlying properties that lead to the answer. 1/3 + 3/4 = 1/3*4/4 + 3/4*3/3 = 4/12 + 9/12 = 13/12 We need to stress good fundamentals!
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