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Propagating Parenting Blogs


As I've been writing about our fun with unschooling, and parenting in general, I've also been reading a lot of excellent homeschooling, and parenting blogs.  If you to would like to "Read more about it," here's my reading list so far:

Stories of an Unschooling Family

This blog features the adventures, and thoughts of Sue Elvis and her family as they navigate Australian home schooling.  In addition to interesting posts, Sue has produced a series of videos where she lays out her thoughts on homeschooling with a mellow, happy tone.  Sue updates regularly, so the blog is a good source of both information, and support in our familiy’s endeavors.


Mom of All Capes

The educational adventures of a family with three daughters.  The posts here are about a conventionally schooled family.  They range from parenting, to schooling, to occasional thoughts on politics.  The posts are fun to read, just as long as they need to be, and raise interesting points!  The site's about page says:

We're "life-nerds" searching for the answers through experience.  We affirm that life is an extended adventure with discoveries hidden in plain sight.  Curiosity is our best feature.  Discover with us!

Happiness is Here
This blog featuring regular updates with thoughts on the homeschooling experience is full of beautiful photographs of the Australian outdoors.  In addition, it has great ideas for organizing your learning space, as well as home/unschooling activities.


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What do we actually want?

To convert the Cartesian nabla



to the nabla for another coordinate system, say… cylindrical coordinates.



What we’ll need:

1. The Cartesian Nabla:



2. A set of equations relating the Cartesian coordinates to cylindrical coordinates:



3. A set of equations relating the Cartesian basis vectors to the basis vectors of the new coordinate system:



How to do it:

Use the chain rule for differentiation to convert the derivatives with respect to the Cartesian variables to derivatives with respect to the cylindrical variables.

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New to the experiment?  Scroll to the bottom to see background and get caught up.
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