When you are working on an assignments that focuses on your rhythmic accuracy, such as unpitched percussion or rhythmic sight reading assignments, you should make sure to use Perc./Clap Mode. When Perc./Clap Mode is in use SmartMusic only assesses your rhythmic input. You will need to activate Perc./Clap Mode for each assignment.
To activate select the Assessment tab at the top of the page and then click Perc./Clap Mode button. The button is orange when Perc./Clap Mode is active.