I too have a hard time teaching to the different styles some times I think the learners change the way they like to get the information For example I had a student tell me he had no idea of how we came to a certain conclusion. I went through the same process twice before and the student was successful. this time he bomded my test. I first lectured and explained what I needed for an out come asked question to make sure every one understood. I demostrated the proceedure then the students did the procedure 1 week later the students had to do the same procedure again and was unable to perform the task successfully. All in all the student observed the task once by me three times in his lab group over three days and four days later it was all foreign to the student I need to add one more thing the students had to write down the procedure . SO they listened to lecture wrote down the procedure watched a demo by myself then by their lab parterns and themselves. Needless to say I was dumpfounded. I was positive I covered every base.