Another way to get into iReady on the iMacs is to launch Google Chrome and then proceed to duvalschools.org then choose the tab "Students", then "Student Software", then iReady. This is the way the students do it at home. It requires additional steps but not as many as going through the Blended Learning folder and then changing Safari to Google Chrome.
Another quick way is duvalschools.org, then "Popular Links" at the top then "Blended Learning", then iReady.
Hope this helps!!!