There are several factors outside of the content that impact the learning. As a teacher, you can increase learning when you :

Create an enriched visual environment

The brain is attracted to color, movement, contrasts of light and dark. Ensure that the room is colorful, with interesting objects on the walls and around the room

Use color

The plethora of colorful marketing materials readily demonstrate that more information is recalled when color is used. Use color in the visuals wherever possible. Specific colors have particular connections within the brain. Bright colors spark energy and creativity, while dark colors lower stress.  What do you think of first when you see these colors once you've identified their name? Mouse over each to see if your perceptions agree with the experts. (Walker, Morton, 1991 The Power of Color, as quoted by Jensen in Brain-Based Learning .)

Involve the learners in intraction with the material

Ask questions!  Allow the learners to explore to discover things.  Telling them is much less effective than letting them do.  The old proverb says, "What I hear I forget, what I see I forget, but what I do, I remember." If you're training software open the application and ask, "What do you see?"  "What do you think you can do with this?" "How do you think you would open this?"  These types of questions involve the learner and help the learner create patterns around the software and it's processes.

Create a low stress environment

Learners that are fearful of material will not learn it well.  Disarm fear.  make the evironment safe with positive feedback, and allow learners to make mistakes.  Work as Coach, not Sarge!

Incorporate music

Studies show that classical music relaxes the brain and allows it to better incorporate new information.  Sixty beats per minute is the most soothing, and much of Mozart's music falls into this category.  Use music as background during activities.  Be aware of how much music is uncousciously around you to set the stage in restaurants, stores, elevators, and movie soundtracks.  Those are there deliberately.  Maximize the concept in your trainng.

Use movement

Get your students to change positions in the room. Utilize role plays, changing groups and interactive stretching exercises to get the blood moving. Use interactive games.

Involve the learners emotionally

Use stories, to engage the learners with experiences they are familiar with.  Allow them to be involved from a personal standpoint by bringing them in to the learning experience using experiences they can relate to.  Encourage them to own the information by using possessive pronouns like we, our and your.

Allow for periods of rest

Be certain to allow time for the information to be absorbed.  Strategic breaks, and even shortened classes over several days allows the information to be processed subconsciously.  Studies show that the brain rearranges information during sleep, so allow for information to be processed, then review and reinforce it during the a session.