Making Colored Sand or Salt

Here's a movie of my kid and I making some colored salt...



As you can see, these are pretty easy to make. I know the big name guys like Discount School Supply sell this stuff inexpensively, but really, you can make it yourself and use the money you'd save on some colored butcher rolls. (Always seems like there's never enough of that...)

Learning about Rainbows

There are so many teachable moments with kids, but sometimes we forget when we get caught up in routine or mundane tasks.

For instance, when you fill up the wading pool or you're hooking up the sprinkler for the kids this summer, remember to take the time to show them how you can make a rainbow and give them turns holding the hose and creating this wonderful effect. (Just remember to put your back to the sun and tell the kids to spray over their shadows for the best results.

When I was a kid, I never got tired of making rainbows in the hose. And every rainbow seemed like magic to me. But don't leave it at that for the kids in your care... be sure to teach them some of the science behind rainbows.

Other ways to have fun with rainbows:

• Put prisms in the science area or on the science table



• Blow bubbles on sunny days and point out the rainbow effects in the bubbles



• set out all the colors of the rainbow at the easel and teach the children about "Roy G. Biv" (Red, Orange, Yellow, Green, Blue, Indigo, Violet)



• Make rainbows on large paper with colored sand or colored salt



• Hold up a compact disc in the light and let the children see the rainbow pattern

^{Rainbow Spray Photo is Copyright abbydonkrafts (Taken by Samantha)}

Square foot gardening

I've been reading a lot about square foot gardening lately. I think that this really makes sense and would be a great way to start a garden in a child care setting where you may not be able to "give up" much of your playground space.

I would advise that you make the boxes 4x2 however, to allow the small arms of children to reach their own squares.

If you buy the book, be sure and get the newer version. They're both about the same price, so that's not an issue... but the author has made some advances in the technique that are particularly welcome. For instance, in the past, he recommended that you dig down into your existing soil where the box is going to be. In the new version, this step is not necessary.

There's a Yahoo! Group for this that I've been following, and almost nobody does anything with their existing soil. In fact, most folks lay down a weed blocking fabric or old newspapers and cardboard boxes (cheaper than the fabric!) and put the boxes right on top.

Also, the book isn't really necessary, although there is a ton of reference material in there with charts and such... very handy. But the author has a Web site and shares his knowledge and experience very generously. He's quite an advocate of this system and is even spreading it to poverty-stricken areas of the world and to Habitat for Humanity homes.

If you join the Yahoo! Group, you'll be able to see member pictures -- there are many albums that have stunning examples of gardens in all stages of growth, arbors and fences covered with tomato vines and such... just really great stuff to inspire you and your students.

Also see pictures of square foot gardens and their bounties at Flickr.

Peanut butter projects and allergies

Someone recently asked about the pine cone bird feeder project and what they could do if there's a child in the class with a peanut allergy.

There are a few alternatives here, including using tallow -- rendered beef fat, other nut butters like almond butter or macadamia spread, and using soy butter.