Q. I have looked the web to find a list of high schools that offer glass blowing in their buildings. Do you know of any?

The Steinert website offers a list of "Instructors and Programs Offering Glassblowing and Lampworking Classes." 
https://www.steinertindustries.com/InstructorsSchools.htm 
Using "find" I located a couple high schools in the list. 

The Glass Art Society (GAS) sponsored a panel about high school level glass programs at a 2003 conference. Please let me know if you would like a copy of this article: 

Biggs, Bonnie. "Panel: High School Glass Programs." The Glass Art Society Journal, 2003, pp. 89-90, ill. 0278-9426 
General overview and the glass program at Wilson High School, Tacoma, Washington. 

The Glass Art Society maintains a list of glass schools. They may include high schools. https://www.glassart.org/faq-whotocall.html#Looking02 

From the GAS website: 
"There are several places to look for schools/studios that offer glass classes/programs. 

"Check out schools with web sites from the GAS Schools page (links are organized by country and state) 

"Check Classes and Workshops in the GASnews, bi-monthly newsletter mailed to GAS members six times per year. 

"If you would like to post workshops you are offering please see: "How do I place an ad in the GAS Newsletter Classifieds" 

"Current members are mailed in August of each year a Directory & Resource Guide. The Directory section is like a phonebook.