A Primary Study On How Pupils Treat Evidence: A Look At The Inquiry Of Lever Principle

To study how students treat the evidence, can let the teachers understand students'characteristics of treating the evidence , and make the teachers train students' scientific thinking, scientific method and scientific spirit with pertinency, it is not only significant to improve students'science literacy also helpful to teachers'professional development.This research uses the method of clinic interview, with the activities of probing into the lever's balanced principle as carrier, to test how the seventh-grade students who have not studied lever principle formally treat and use evidence during the process of inquiry for the law. The test process mainly include the stage of inquiry and the stage of judging others' view. Through these two stages, we try to find out the evidence foundation for students drawing conclusion, how the datas against their conclusion (counterexample) which they meet will influence the inquiry process and how students treat these counterexamples, and how students use the evidence to help to judge while assessing others' view, etc.It discovered that the testees attach more attention to the balanced examples during the inquiry process, and often draw conclusions based on several balanced examples'characteristics and after brief examinaions.Without tester's interference, there are 37.21% of the testees who reached conclusions without meeting counterexamples, and 62.79% of them meet. Among the testees who don't meet counterexamples, 80.25% of them discontinue the inquiry voluntarily, Only 18.75% of them continue inquiry. Among the testees who meet counterexamples, 48.15% of the testees discontinue inquiry voluntarily, 51.85% of them continue inquiry. Therefore, the appearance of counterexamples can improve the probability of the testees to continue inquiry. Through questions, the tester hints the testees to pay attention to counterexamples and offers counterexamples to the testees...