Dust off Donald, Let's see the Magic in the Golden Ratio

I'm old so I remember the glory days of Disney.  I have to admit that this little jewel had slipped my memory, but when we dusted it off and used it with our students....wow....the power of Disney to make something interesting came to life.

Donald in MathMagic Land does many great things.  We are in the process of studying ratios, specifically the golden ratio.  This is the perfect movie to show them.  I think one of the most amazing parts of the movie is where Donald shows how this ratio comes into play with musical instruments...ha!  get the pun?  (We have an old VCR copy of the movie, but you'll get the idea from this YouTube clip.)

Well, we tried it.  Some of the strings students went and dragged their instruments into our classroom.  At first we couldn't stretch the string tight enough to just do as in the movie.  But eventually we were able to replicate Donald's experience.

Students at this time of the year are darn hard to engage nevermind impress.  This old, old movie did it.  Now the kids are totally pumped to learn about the 2nd most famous irrational number.  In our class opinion, pi takes 1st place and phi takes 2nd place.

It will be fun to see what kinds of drawings they are able to make of the nautilus shell.  The best part of all this is that learning is fun and it is setting them up for their next unit at the start of 7th grade.