We think that the 5 stages are excellent!
Although if the Website is for student we don´t think it is necessary to have all the information available,for example: objectives, worksheets, specially if you are in the computer, you should have activities on the computer and it should have only a resume of all the content. Remember, if you are working with small children probably they are not able to read. Takscopes should have a teacher or parent section and another one for students were they can have access to the games for each topic.