"You know the basics: Establish clear rules and consequences, be consistent, keep students engaged. But even with all that in place, the small things you do could be wreaking havoc on your whole system. Here are some habits you might have developed that are messing with your classroom management, along with more effective alternatives..."
Personal Note: While not specifically an article related to technology and tech instruction, it is a great refresher article for all of us. Each alternative is worth at least a second thought.