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Re: Difficulty levels

In my view community set DL is much more important that an author's personal opinion. Firstly, it is one of feedbacks, which make community to be real community. Secondly, it is just functional for all top level UMOs: Courses, Dialogs of Texts and Through Problems, because people need to compare them and opinion of others is essential here. Remember, UU is kind of market place, where people shop around for suitable learning materials and processes , they do need advice of peers and professionals. Some community set marks (not only DL, but some others too, like effectiveness, boredom, correspondence to specific educational system, uniqueness, you name it) will make it much easier. To sum up: community set DL is absolutely necessary.

Alexey Parshin wrote:
Honestly, the community-set level of difficulty is useless. The level of
difficulty is a part of information. It should be defined by the author and
nobody else. The community opinion about the difficulty may be used as
purely statistical, untrusted information.

2006/12/12, Anatoly Volynets <av@total-knowledge.com>:

Once again, there are two unrelated issues in one here:

1. An UMO difficulty level  (DL) in the Repository, which is set by
community voting  (probably by  authors and students  - this is to be
2. This same UMO DL in the course or among courses by the same Author,
set by the Author.

This is why I incline to have two part DL mark: n-m, say n - stands for
the Repository DL, and m stands for the DL set by the Author.

n,m are integers, starting from 0.

We probably need to foresee a situation when somebody discovers a
problem, which is easier to solve then one of DL =0. Any suggestions
about that?

Regarding any additional functionality (like work flow) that can be
derived from DL, I would leave it for next UU versions.

sergey@total-knowledge.com wrote:
>> OK. Let's go over this in detail.
>> First what we want to achieve.
>> There are objects whose presentation order is undefined.
>> i.e. What order do we show explanations in, when topic is first
>> What order do we preset problems to solve in?
>> Sure, some times it's rigidly defined by teacher (i.e. problem B must
>> be solved only after problem A is solved), but sometimes it
>> doesn't matter as much. At the same time we may want to provide
>> teacher to give some guidance to students. One such way is to allow
>> to set "difficulty" level on objects, and then have student set their
>> preferred difficulty level (on per-course basis). Then, when rendering
>> object lists, objects of his preferred difficulty level will be
>> first.
>> Now questions:
>> 1. What object difficulty level should be bound to? i.e. can same
>>     have different levels in different courses. How do we organize
>>     What if the problem is in different courses as a result of being
>> included
>>     in some sub-topic...
>> 2. Who sets the difficulty level? Should it be affected by user votes?
>> 3. Should we allow authors arbitrary levels or should we have a
>> predefined set?
>> 4. Should we allow authors arbitrary level names or should we just
>> with numerics?
>> If you have more questions, add them to the list.
> Perhaps questions below should be answered too:
> 5. What happens when author adds object to his course from the
>    Is difficulty level of that object stays the same or will be
>    by current author?
> 6. Will teacher be able to assign his course objects to students by
level of
>    difficulty?
>> --
>> Ilya A. Volynets-Evenbakh
>> Total Knowledge. CTO
>> http://www.total-knowledge.com


Anatoly Volynets, Co-Founder


Anatoly Volynets, Co-Founder

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