Good to take a look at the class room and lab from a students perspective before you start each class.

Motivating students can help to contribute to their success. However, intrinsic motivation is lasting and has more value whereas extrinsic motivation maybe temporary satisfaction that does not have eternal reward. 

Third try, this is where I have difficulty, but I'm very happy with the content of this course.

Get to know your students and listen when they are expressing frustration

Students have all kinds of needs encourage them they can do it!

Keep their hands and mind busy, between book work and hands on Labs.  Find what they're interested in and give them real world examples and use your practical real-world experience, to show them why what they are learning is important.

Keeping the student's attention should be your number one goal, in order for them to learn effectively and comprehend what you are teaching.  If you can bring some excitement to the classroom they will comprehend so much more of their lesson.

The human factor as said above, students want to know that you have been in their shoes and still have a personal side that is not all business, have a little fun with the students.  Have some good humor, ask them how their day is going or what they are doing the rest of the day, plans for the weekend.

Your students are like a book read the cover and get to know them.  Learn what works for them and what works for the other students as well.  You can tell when students are interested in what you have to say or discuss.

I learned that as the instructor it is essential for me to not just take a snapshot of my students, but to look at the individual portrait of the learners. Knowing where the come from and where they are intending to go can guide me in how to engage them in the classroom to ensure a positive and successful learning experience.