In this paper we present an Example-tracing Tutor for the conversion of a sentence written in natural language (NL) to a sentence written in first order logic (FOL), which is a basic knowledge representation language. The tutor is based on the scripting of the process of the NL to FOL conversion and it has been authored using the Cognitive Tutoring Authoring Tool (CTAT) in which we have implemented a completed student interface and we also have created a Behavior Recorder graph for the above process.