This web app enables you to practice pharmacy calculation problems of a given type for unlimited times. You will only see the change in the numbers but not the skeleton of the problem. I call this "Shadow method" of practicing over and over. The questions are arranged in both table view and list view (to be accessed from the left panel). When a question type is clicked, it opens with its title, hierarchy, main body of the question and four options. It also has a button to retry. You can select an option and submit to verify correctness. At this point, a new button named "Explanation" is visible, which shows you how this problem was solved.
Active learning assignment
Practice multiple times
and then capture the top part of the screen that displays the number of times you tried and did the math correctly. I would request you to show me that summary. It is done either during my lecture in the class or later when the students practice on their own.
About the site
I used PHP-MySQL to build this website. I got a full scholarship to study computer programming when I as in the pharmacy school, which taught me how to code. The most common function used in this website is rand().