Construction of Formative Evaluation Method for College English

Traditional educational evaluation methods have many drawbacks, such as long time, inaccurate data, process data omission or inability to collect, etc. The analysis results based on such incomplete data can only reveal some specific problems and lack comprehensiveness. Formative assessment is a kind of evaluation method focusing on students' learning process, which conforms to the characteristics of students' English learning, balances the value of English teaching and respects the development of students' thinking and emotion, so it has a good basis for application in college English teaching. Big data provides technical support for formative evaluation, and makes deep use of big data to establish a complete data chain for each student's development. The formative evaluation method of college English constructed in this paper conforms to the needs of college English education in the era of big data, confirms and reveals more valuable education laws, accurately records the development track of each student, and promotes more accurate educational evaluation practice.