The only kid I know who would even try to do a cartwheel on muddy ground. The kid loves to cartwheel. I don't really get it.
The kids in the background, she later explained, are "part of her fan club." Apparently she often goes over to the nursery school child care– in the classroom next door to where she spends her afternoons– and reads to the little kids. A great example of how the school manages to mix kids from various grades, to everyone's benefit.