Posted on twitter.com/dmarain@gmail...

A "Fitting" Celebration of the Fourth

7,4,15,?

The next term could be 40. Explain using the quoted hint!

COREFLECTIONS

Students, as most people do, tend to look for simple arithmetic patterns like "subtract 3, add 8" but this problem can be "fitted" into a quadratic pattern. Common Core and STEM strongly recommend that math educators include Least Squares methods into our curriculum using appropriate technology. But algebra teachers can seize the opportunity as well to fit a parabola thru the points (1,7), (2,4) and (3,15)!

## No comments:

Post a Comment