[Data-modeling] Changes to the schema for primary and secondary schools

[Benjamin Goldenberg]

On Sep 16, 2008, at 5:18 PM, Jeff Prucher wrote:

> Currently, the lowest and highest grade levels taught for schools  
> (that is,
> primary and secondary schools) is stored as a text string. This  
> makes it
> extremely difficult to compare schools, since the data varies widely  
> (e.g.
> "1" and "first" are both used). There's been a request to normalize  
> this,
> and I've put up a proposal in a personal domain on sandbox. My idea  
> is that
> there should be a new type (Grade Level) for this value. Because  
> these can
> vary greatly (both in terms of nomenclature and how they function in  
> the
> school system), I've also included a non-unique, disambiguating  
> property for
> the locations in which this grade is used.
>
> The Grade Level type is here:
> http://sandbox.freebase.com/view/user/jeff/education/grade_level

I think that the Grade Level type should also have a "usual age" time  
range property. For instance, sixth grade students are usually 11 to  
12 years old. Obviously there are exceptions but sixth grade curricula  
are designed for 11 to 12 year olds.

Ben


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