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Compilation of textual contents of lesson units

Textual teaching materials to be used by the Mobile Language Teaching Centre can be either of passive type which require reading only, or active ones (exercises), requiring students’ responses in one way or another. For example:
• questions requiring the selection of one or more correct answer(s) from a set
• questions that need to be answered by typing in a text
• sentences which are to be completed by filling in missing parts (by typing in or by selection from a set)

In each case, these teaching materials must be classified – e.g. into one of the types mentioned above.

In the case of mobile (smart) phones, due to their lower screen resolution, it is more practical to display the tasks broken up into elementary parts, i.e. to show just one question or sentence at a time, along with the corresponding active control (radio buttons, checkboxes, type-in fields, etc.). This arrangement is also suitable for use in the case of web-based interfaces.

For illustration purposes, textual materials may contain images as well. The sizes of these images need careful consideration, since it makes no sense to download a high resolution image to a mobile phone which will only display the image with small resolution. It remains a technical task to find out empirically the minimum resolution of the image at which all necessary information is kept, and to store the image with the corresponding size. In order to provide equal opportunity to all users, the same image should be shown to web-based clients, in order to avoid them gaining an advantage by using a higher resolution screen.

Solutions and their scores should be an integral part of a textual teaching material unit, so that students can evaluate offline, even on a mobile (smart) phone, their answers to a set of exercises. Besides, answers must always be uploaded to the Mobile Language Teaching Centre, at the latest when an internet connection is restored, since in any case the Centre will keep records of progress, strengths and weaknesses of students.

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