Observation and giving feedback are amongst the most fundamental skills in teaching activities. The former is closely associated with the research capacity of a teacher, while the later comprises a range of argumentative, presentation and communicative abilities. In Vietnam, the teaching practice evaluation skill of almost all teacher students has been, however insufficiently developed for a long period of time. To resolve that situation, several strategies focusing on enhancing the observation and giving feedback skills were experimented on six pre-service teachers in Vietnamese Literature and Linguistics within one semester of their micro-teaching practice. The study was undertaken to investigate the impacts of using the selective strategies on the observation and giving feedback skills of the participating teachers. The research data collection included teaching practice lessons, self-assessment reports and minutes of discussion and interviews. Significant improvements in lesson observation and giving feedback skills were validated as the initial study results. The lessons from this study are probably applicable to teacher training across all subjects in Vietnam and elsewhere in the ASEAN region.