This becomes your learning objective. After a presentation on how collection methods can effect erroneous results, the students can select collection methods that will minimize the possibility of introducing bias in laboratory results. Edutraks will be predominantly lecture due to size. If you want students to learn, remember, and apply what was covered, you need to give them opportunities to practice using the information. Research shows the only difference between those who change their behavior due to new learning and those who don't is confidence in performing the new behavior.
Confidence comes from practice.
As you speak, have students fill in notes from what you say. Use a midpoint summary. Halfway through the presentation, ask students to stop and write three things they will be able to apply on the job. Ask students to pair up with the person next to them. Have each one write three questions about the material covered.