  In the classroom environment, search tools are the means for students to
access Web resources. The perspectives of students, researchers, and industry
practitioners lead the ongoing research debate in this area. In this article,
we argue in favor of incorporating a new voice into this debate: teachers. We
showcase the value of involving teachers in all aspects related to the design
of search tools for the classroom; from the beginning till the end. Driven by
our research experience designing, developing, and evaluating new tools to
support children's information discovery in the classroom, we share insights on
the role of the experts-in-the-loop, i.e., teachers who provide the connection
between search tools and students. And yes, in our case, always involving a
teacher as a research partner.

Information Retrieval;Computers and Society;Human-Computer Interaction