One thing that I have learned from being a instructor is that the temperature of a classroom is something that has a big impact on the way students learn & behave throughout the day.
When students are too cold during the day, they tend to become more whiney & complain about everything.
When the classroom is too warm, they can become too comfortable & begin to get lazy & sometimes, students will even fall asleep during lessons. I have found a temperature that keeps the students alert yet comfortable, & all it took was a survey of the temperatures that parents use in their own homes. I asked the students to take home a small survey for their parent to complete & return to me by the end of the week. The questions in the survey were in regard to the average temperature they keep their homes throughout the year. I found that most families keep their home around 76 degrees. I started using my smart thermostat to keep the classroom at a comfortable 76 degrees throughout the week & my students had a great reaction to this, then most of them were happy with the temperature, & only a few felt like they needed to bring an extra layer to class. The sleepy adolescents were alert & I even observed that they were taking more of an interest in the subject material. Occasionally, all it takes is a little bit of research to see what makes the students happy in the classroom.