How to Do a Back Handspring. The back handspring is a basic building block for many gymnastics or cheerleading routines. To do a back handspring, you have to fall backwards, land upside-down on your hands, and push upwards to land back on your feet.
BRAIN TEASERS. Riddles brain teasers exercise your brain! Check out our insane collection of brain teasers for kids and all ages. Increase your mental strength today by digging through our brain teaser riddles and games. Think laterally.
1 Astrocytic tumors include astrocytomas (can be noncancerous), anaplastic astrocytomas, and glioblastomas. 2  Oligodendroglial tumors. Some primary brain tumors are made up of both astrocytic and oligodendrocytic tumors. These are called mixed gliomas.  Glioblastomas are the most aggressive type of primary brain tumor.