Student accesses problem

ID: 
UC-61
Workpackage: 
Case Study: Mathematics
Relevant Deliverables: 
Assistant for solving word problems
Goal: 
Students are able to retrieve problems in a certain area of mathematics to be solved interactively
  • Student opens the web page for a problem.
    • if Student previously visited Problem, continue on student reopens problem;
    • System adds Problem to list of open problems for Student
    • System creates new context for (Student,Problem) with empty student model, empty list of named variables and status open.
    • System shows initial screen for Problem
Actors: 
Actors: 
Notes: 

System state

To each pair of (Student,Problem) there is a context comprising:

  • The problem model;
  • The problem status: Open, Modeled or Completed;
  • The student model for this problem;
  • The set of named variables;
  • The position in the solving script sequence, if any.