YES: NuDe Fractions...Nu-merator on top and De-moninator on bottom...
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I always used "Denominator = Down".
It's pretty simple but the same letter for each word seems to help the idea stick in their minds.
Numerator=north, Denominator=down. It's important that they what these terms mean, though, not just which is the top/bottom. Numerator refers to the number of parts you are talking about and denominator refers to how many parts make one whole.
I too think of the denominator as the number that is down below and tells you how many equal parts you have divided the whole into. The Numerator is the number at the top that tells you how many of those equally divided parts you are referring to. One slice of a pie that has been divided into 100 equal parts is definitely smaller than one slice of a pie that has been divided into 10 equal parts. 1/10 vs 1/100. From which pizza pie would your students like to get a slice. This explanation helps some students create a mental image.
I use ASL and Whole Brain Teaching. To represent the whole I put one hand up as the middle then the hand on bottom starts as a fist representing the whole, I turn it into a ASL d "the whole is the denominator" (fist to signed d). then I put my hand over and sign one sideways into a n, saying, "part of the whole is the numerator. Not sure if this what you are asking, but it works for me and keeps the students engaged.
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