It emphasizes cultivate core literacy and focuses inquiry and implementation of the 12-year national education. Primary students are generally lacking in scientific explanations skills in process of inquiry and implementation, and it is important to cultivate in-service teachers for playing a guiding role. In this study, 14 in-service teachers took "Advanced Entomology" course at an education university were selected as research subjects, and they were trained to use "POE & scientific explanations with text scaffolding" to design experiments and micro-teaching. This study was conducted using the Teaching Assessment of "POE & Scientific explanations with text scaffolding" Scale (TAPS) and Learning sheet Assessment (LAPS). This study showed that: 1. there are 7 groups of teachers’ imitated experimental design and micro-teaching, and found that 5 groups to reach the goal, and 2 groups were ineffective because there are too many prediction problems in the design or poor experimental lead teaching. 2. The average score of TAPS assessments of 7 groups imitating experimental design micro-teaching was 67.50 (out of 100), and the TAPS assessments of self-experimental design micro-teaching averaged 75.00 points and improved by 7.5 points. 3. The average score of LAPS assessments of 7 groups who wrote the learning sheet with imitating experiment was 29.7 points (out of 36 points), and the LAPS assessments of 7 groups who wrote the learning sheet with the self-experiment averaged 31.9 points and improved by 2.2 points.