Charles,
I encourage,you to get some hands on instruction, mentoring, or at least watch a bowl demo.
Bowl turning done properly is one of the safer things you can do in woodworking.
Done improperly, you risk serious injury and death.
I start bowl students with a 9" diameter blank about 5" thick cut as a disk with a hole drilled in the center of one face.
This is mounted on a screw in the 4 jaw chuck.
They learn basic tool control, how to,shape a bowl, make a tenon, and how to hollow it.
After one or two bowls begun thus way I then have them turn bowls between centers with a spur drive and they learn to balance the grain
I consider glue blocks on green wood an advanced skill. I use thick CA for mounting the glue blocks. But the work has to be done quickly and the matting surfaces turned with slight conclaves to create the glue joint.
Work safely,
Al