Reflective practice is an important sub-component of teacher research. It includes journaling and talking about one's instructional practice. However, doing reflective practice is not the same as doing teacher research.
Teacher researchers hypothesize and systematically test their ideas. They look to triangulate their ideas with
- multiple forms of evidence
- multiple perspectives (inside and outside of their research group)
- the research literature on this topic
Teacher researchers also write about their projects. Writing is an important part of the process because it requires organization of ideas within a framework.