Web services for online assessment in mathematics

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Presentation transcript:

Web services for online assessment in mathematics Serving Mathematics Web services for online assessment in mathematics http://maths.york.ac.uk/serving_maths/

Mathematics assessment systems: Question can contain randomized mathematical expressions Student’s answer is marked using a computer algebra system Can mark questions that have no unique answer Can render mathematical expressions

Separate Assessment Systems AiM CABLE Student or Lecturer TOIA METRIC WaLLiS User has to deal with a different user interface and a different question syntax for each system Systems have to duplicate assessment system functionality

Single assessment system with remote question engines AiM AiM Assessment System CABLE METRIC

Splitting up the tasks: Question engine (Item engine) Template processing (randomization) Item rendering (optional) Response processing (may use CAS) Assessment system Assemble questions into quizzes (items into tests) Delivery of quizzes Scoring and reporting Keeping database of questions and responses

Components: Assessment System Question engines Question Authoring Tool SMITE Mathematics Translation Engine (e.g. TeX -> MathML) SMITE protocol Assessment System (Moodle) RQP Question engines (AiM, CABLE, METRIC MathQTI Question Authoring Tool (from scratch) RQP

Assesment items; web services; packaging; conversion. The assessment domain Creation: items; assessments; metadata. Banking: metadata; storage; management. Results reporting: grading; notification; transcripts.   Assesment Response processing: web services; item statistics. Exchange: packaging; conversion. Delivery: purpose; security; exposure; context; timetabling.

Interoperability MathQTI Mathematics extension of QTI allowing presentation MathML and OpenMath expressions in template and response processing RQP Remote Question Protocol Web service protocol to allow communication between assessment systems and question engines. SMITE (Translation Engine) Protocol allows clients to request translation between different mathematical formats (e.g., MathML, OpenMath, TeX, CAS syntax, HTML)