Add a new screen to an existing iPad application

We have an iPad application on iTunes already. Here is the link for it 

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 For the new version of this app, we are adding new screens to it. New screens are very similar to the existing screens, layout and functionality wise. So there is plenty of sample code in the project. App has 2 main layers. UI layer and data API layer which talks to a server for data transfers back and forth. It's a pretty clean data API to integrate with UI. So you won't be doing any data integration with the actual server, you'd just do regular objective-c calls to a data class to read or write data. Design mentality will have to be kept throughout the app with the new screens 

For this specific task we are going to add a section for managing assignments of a teacher. It will have 3 subsections in a single page. 

Courses Lists 
For each course, a list of assignments 
Create/Delete/Update single assignments 
(If this phase is completed successfully, we will do grading of these assignments on the same screen for the students taking the course) 

Screen will be similar to the "Courses" section in the app. A list of courses on the top left corner, a list under it for the assignments. And a grading section for students on the right side covering all the height of the screen.

 Data APIs for these data are ready. You will only do 
 Main view with tables laid out in it Selection in one table reloads data in the other table Another view for managing a single assignment (a form of around 13 fields). This view pops up when clicked on + or edit icons on the assignments table. if you get the job we will do an initial walk through of the existing code to get you familiar with the process

. We require very clean and precise work, as you will see in the existing code. 
you will also gain good experience and best practices. There is a lot more screens to be added for this phase. If we like the work you do, there will be more tasks ahead.