Model Lesson- Boys Branch Twelfth Grade had a model lesson in Physics about Transistors with Mr. Moh’d Al-Hashdi. Share this:Tweet Click to email a link to a friend (Opens in new window) Email Click to print (Opens in new window) Print More Click to share on Reddit (Opens in new window) Reddit Share on Tumblr Related Leave a ReplyCancel reply This site uses Akismet to reduce spam. Learn how your comment data is processed.