I'm not sure where to tell you this fits in your curriculum, but it is really fun and the kids loved it. It involves making the mobius strips, predicting what you will get when you cut them one of two different ways, and then following up in writing.
It is a bit mind-blowing trying to wrap your head around why you get different results depending on where you cut the strip. Cut it in the middle, and you get one strip with a full twist in it. Cut it to the outside, and you get two connected loops: one is a regular mobius strip, and the other is a loop twice as long with a full twist. Cut them both a second time on the remaining line, and they both become two intertwined loops, both with a full twist.
This activity emphasizes making observations and predicting outcomes. Students practice writing their observations, predictions, and results in full sentences. They must follow detailed written directions, and if you want to supplement with the accompanying photos, for visual learners, you may.
There is no rubric or answer key, This is an engaging and fun activity that stands alone, or you could include it in a series of activities about scientific practices. It would also make a fine activity for a substitute teacher to do with your class, but you won't want to miss it.
The files include two 11x17 pages that create the blanks for making 3 mobius strips. There are 3 other pages with directions for making predictions, completing the activity, and answering questions. You will need to be able to print double-sided on 11X17 to make the blanks for the strips.