If the latter represents typical
fairy circle formation, then circles must grow over several years, because their initial size would be much smaller than is typical for the area.
On the other hand, Tlidi et al. [16] specifically addressed the patterns of fairy circles in their mathematical model, and Sheffer et al. [17] tested some aspects
of circle formation in the laboratory.
Dune sands also do not
support circle formation, perhaps because the two grass species do not generally grow on shifting dunes.
Place the pieces of cardboard back into the
large circle formation so that students can use the brainstormed ideas to write their poems.
To facilitate lively conversation, arrange furniture in
loose circle formations, allowing guests to speak comfortably and hear one another above the din.
At the very least, these observations reveal the very earliest stage
of circle formation (Fig. 11A, B) which takes place during the periods when summer rains have stimulated luxuriant grass growth.
It seems more likely that the process seen in Fig. 10B is more than simple
fairy circle formation, and that the eventual fate of this «new circle» area is not to be peppered with many tiny fairy circles, but to develop a few fairy circles within a patchy, rather disorganized matrix such as in Fig. 12A (see below) and in the ellipse in the upper right area Fig. 10B.
She proposes that lessons involve the teaching and practice of encouragement, creative problem solving, and
circle formation.
Our kids enjoyed
the circle formations of the rocks and running their hands and feet through the sandy floor, but they LOVED the adventure and challenge of climbing up and down steep staircases!