Hi Katayoun, The learning environment must reflect two very important components. It should reflect the business/industry standard for which you are training. That is the most relevant and current equipment and instructional support. It should also reflect your educational personality and how you approach learning. You may be a person that likes color or music and you should have this in your classroom. Keeping in mind that you do not want to distract your students but support them. If the class is a lab class with much noise then you might want to use bulleting boards to convey messages and color. This is where you can be creative. Gary