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In this paper, its Design principles and functionality is analysed firstly. Then, the framework including the natural language understanding agent, automatic modelling agent and automatic problem-solving agent are discussed in the following in order to support the real-time problems solution. Next, the methods for automatically extracting tutoring function such as hint and summarization is given based on the difficulty of knowledge components and the type of problem acquired from the detailed answer. Finally, the effectiveness of MITSAS at improving the Chinese Students' learning gain is shown by an experiment conducted in junior school.<\/p>","DOI":"10.4018\/ijicte.2015040102","type":"journal-article","created":{"date-parts":[[2015,2,13]],"date-time":"2015-02-13T07:51:51Z","timestamp":1423813911000},"page":"14-31","source":"Crossref","is-referenced-by-count":3,"title":["Developing an Intelligent Tutoring System that has Automatically Generated Hints and Summarization for Algebra and Geometry"],"prefix":"10.4018","volume":"11","author":[{"given":"Yatao","family":"Li","sequence":"first","affiliation":[{"name":"Xidian University, Xi'an, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ke","family":"Zhao","sequence":"additional","affiliation":[{"name":"Xidian University, Xi'an, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Xu","sequence":"additional","affiliation":[{"name":"Xidian University, Xi'an, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2432","reference":[{"key":"ijicte.2015040102-0","doi-asserted-by":"crossref","unstructured":"Aleven, V., & Koedinger, K. 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