Our annotation scheme introduces opportunities for the educational community to conduct further research on the relationship between features of student talk, student learning, and discussion quality. Once automated classifiers are developed, such relations between talk and learning can be examined at scale. Also, automatic labeling via a standard coding scheme can support the generalization of findings across studies, and potentially lead to automated tools for teachers and students.  The development of an annotation scheme explicitly designed for this problem is the first step towards collecting and annotating corpora that can be used by the NLP community to advance the field in this particular area. 
 Question: what opportunities are highlighted?
Our annotation scheme introduces opportunities for the educational community to conduct further research  Once automated classifiers are developed, such relations between talk and learning can be examined at scale  automatic labeling via a standard coding scheme can support the generalization of findings across studies, and potentially lead to automated tools for teachers and students collecting and annotating corpora that can be used by the NLP community to advance the field in this particular area