‘Big data’ was supposed to fix education. It didn’t. It’s time for ‘small data.’

For more than 10 years, "big data" and "analysis" are increasingly becoming part of the educational circle. (Big data is a term used to describe data sets, they can be analyzed only by computers and analyzes are used to describe how data is collected, analyzed and analyzed I will.

The biggest obstacle to getting insight from the data is preparation of the data regardless of size. This work gives many unpleasant nicknames such as data verification, data structure, preprocessing, data management work, etc., the most time-consuming and unpleasant work for data engineers, data scientists, and ML / AI experts is. In a distributed data sharing ecosystem, challenging chaotic data is even more serious. PBDE, which enables transmission of unverified data of unknown structure, is a serious obstacle for scientists and developers who wish to use data.

The promise of big data is a topic of recent town. But does big data in education mean big insights for educators and educational developers? From the data you can gain rich, bright and practical insight about teaching and learning, but it is a matter of asking the right questions, dealing with noisy and creatively dealing with incomplete data, and limiting analysis It is only by recognizing it. Briefly, this possibility provides useful and reliable insight from educational data - regardless of size, it is part of science and art

The role of the term "big data" in education has begun to understand what these data sets mean to learning outcomes, but that is not clean. In the past few years, "big data" has easily become one of the biggest trends in education. Everyone wants more data; we have a huge database, some people support it, others are afraid to oppose it. But what happened to the data after all these were done and done? Through the various products I have seen, the term "educational data" can refer to almost everything learners have. Some of them are very obvious and given. For example, at the time of student registration, employees and teachers need to know who the legal guardian of the learner is, or what their living arrangements are. In other words, they may live in a dormitory and even a distant relative that may be homeless. All of these are essential to their teachers