Shrinking Ropes

Today we did a task involving knot tying. We had several lengths of rope in different thicknesses. We tied overhand knots in the ripes and measured after each knot was tied.

We kept track of our data in a table, then graphed it on paper.

While not perfectly linear, it’s a really strong fit.

We answered some questions about the relationships, and related what we saw to our recent studies of linear and quadratic patterning and relationships.

I was impressed at how self directed my students were today. We were on task for almost the entire period.