Name: ConceptXBlock
Owner: edX
Description: edX: An XBlock for adding concept tags. There is an associated external service in a different repo.
Forked from: pmitros/ConceptXBlock
Created: 2017-07-07 15:37:09.0
Updated: 2017-07-07 15:37:11.0
Pushed: 2014-07-23 21:12:30.0
Homepage:
Size: 344
Language: Python
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README
ConceptXBlock
This is a simple XBlock which will allows one to tag problems with
concepts. To be useful, it requires a concept server. There is one in
the matching concept-tag-server repo.
Usage:
<Concept server="http://www.sample-concept-demo-server.org:7000/">
This displays:
In the bottom left, you can search for learning objectives, and drag
them into one of the top three bins. The bins are:
- Taught: For concepts which the item introduces. For example, a video
explaining the quadaratic equation would be tagged as teach the
quadratic equation. Perhaps should be renamed to 'introduced'?
- Exercised: For concepts which the problem is explicitly designed to
practice. For example, “Solve 5x^2+6x=7” would exercise the
quadratic equation.
- Required: For concepts implicitly required. For example, a physics
problem on the path of a rocket might have the quadratic equation
as a prerequisite, but not be explictly designed to exercise it.
The edit button is a link back to the concept tag server, where we can
edit concept descriptions.
The system has a few serious issues:
- Performance. This is trivial to fix, but the system currently makes
an AJAX request per objective on the page. Bulk requests would
solve this.
- 500 errors when e.g. a concept is not on the concept server.
- No test cases.
- Shown as a student (rather than instructor) view. This is a Studio
limitation.
- Lack of configurability. It works on my taxonomy
(taught/exercised/required), and not yours.
- Horrific styling. In desperate need of a cleanup.
It does have a few nice properties:
- Continues to develop edX-as-a-platform, rather than
edX-as-a-product.
- Natural path (via concept wiki) to coming up with a concept
taxonomy. Next steps will be to split and join objectives.
- Natural extension to other wise of tagging objectives (e.g. Bloom's
taxonomy, etc.)