We've done a lot of problems on a large number of jungle gyms. Not all of them were good ideas. In fact, some of them are terrible.

Here's a bad one:

Tires look very tempting. They've got nice handholds, you can go underneath them, and sometimes the traverses go on for a while.

Yuck! Just ignore them. Particularly at Belle Sherman Elementary School, it will be difficult to ignore them, but please try.

Here's another:

Well, okay, there's no beehive in the picture. Occationally, one will pop up, though, so look out. They aren't limited to the tops of towers, either.

Some people love this one... Mark and Fred do not, so we'll say all sorts of terrible things about "hobbit problems". We decided not to demonstrate the technique, so we just got a photo of a little kid:

The idea is to get some adult-sized masochist to go through these small holes that kids like to go through. The kids fit. You don't. Don't bother.

Finally, here's one that is fun to do, but we recommend against. We call it the "backstroke", for obvious reasons.

We suspect that it's a good way to get tendonitis, since your forearm tendons get stretched pretty far.

Send email to Fred or Mark.