Hello, <div class="gmail_quote"> I'm Roshan Karki. Bryan must have told you about the activity for proof of concept. Here, I'm trying to tell you more about the activity and the reason for choosing it. You can get the activity from <a href="http://hg.olenepal.org/3_Maths_Quadrilateral_1_swf/" target="_blank">http://hg.olenepal.org/3_Maths_Quadrilateral_1_swf/</a> The activity contains two lesson part. Lesson part usually contains simple animation or simple exercise for which a student isn't judged. This activity has an interactive lesson. The exercise part in this activity is also different from other activities. This exercise has mixture of options like typing correct answer, clicking correct answer and so on. Normally we have only one kind of mechanism to choose correct answer. One thing missing in this exercise is the "correct" and "incorrect" sound that plays as the user submits the answer. While in lesson part, you can also play game. The game icon is at right corner. Please put forward your questions and confusions. Lastly thank you for doing this. Regards, Roshan Karki </div>