walker wrote:
1) The shortest educational cycle - 1 problem. The power of mobile applications consists in possibility of spending every free minute on preparation. If we look at our whole day, it will be difficult to find 75 minutes. Moreover, to be concentrated over whole educational cycle (whole test, verbal or quantitative parts, quizzes), we have to study in silence, don't we? But what if we have only 5 minutes, let's say in cafe, another 5 minutes waiting a friend or appointment and so on? I found the most appropriate modes of working with mobile app: A) problem -> answer -> (+ bookmarks if I think it would be useful for me to analyze the problem deeper) --> next problem. B) problem in bookmarks -> explanation -> (- bookmarks if I get it) -> next problem in bookmarks. This two ways of working with mobile application are very simple and short. Let's imagine we do 10 problem quiz. If we interrupted the quiz a few times, it would be difficult at the end of test to remember first question in detail when analyzing a wrong answer. So, my suggestion to take 1 problem as a basis for GMATClub app.
I think it is a great idea. After each question you can get a confirmation whether you got it right or wrong and have a chance to review the explanation. If you are happy and still have time, there could be a continue button that will give a similar type question (Hard Arithmetic for example or Easy Geometry)
This only increases the need for a review system/bookmarking and
error log.
walker wrote:
2) Error logs vs Bookmarks. They both are responsible for the same function: keeping difficult problems to which we could return latter to analyze our mistakes in detail. I'm a strong supporter of bookmarks approach for the following reasons. Sometimes we what to consider deeper problems we've answered right in order to grasp a concept; sometimes we don't want to consider problem we've answered wrong because we've made a silly and obvious mistake. Bookmarks-approach better suit for this function. Moreover, after a week of study we will have a lot of error logs and it will be difficult to manage it. At the same time, error logs help to avoid repetition of problems. It is possible to incorporate such functionality in bookmarks-approach introducing black/white of bad/good bookmarks.
I don't know but maybe it would be useful to have two different applications for math and for verbal.
So, what is my preliminary vision of the first GMATClub app? I think it is math app with 300+ problems divided by difficulty level, timing for a problem, bookmarks, random problem and links to forum threads for each problem. I think we can make such application pretty fast and continue our discussion having something in hands.
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Why two different versions? I can understand from a developer perspective it is easier to develop, but why from a user standpoint?