This article presents a mathematics discourse technique adapted from literacy instruction to promote sense making when teachers are launching a lesson about story problems. Math Bet Lines helps all students engage with the meaning of the story problem and is particularly beneficial for emergent multilingual learners. In this article we discuss how teachers implemented the Math Bet Lines technique and share their successes, challenges, and tips for overcoming those challenges.

This article describes a mathematics professional development program for elementary school teachers focused on improving mathematics discourse for all students, in particular emergent multilingual learners. Frameworks, such as the Math Discourse Matrix (Sztajn, Heck, & Malzahn, 2020) that characterizes four types of discourse (correcting, eliciting, probing, responsive) and other resources aimed at planning and implementing lessons that support emergent multilingual learners' engagement in productive mathematical discussions are shared.

Many mathematics teachers agree that engaging students in high-quality discourse is important for their conceptual learning, but successfully promoting such discourse in elementary classrooms—with attention to the needs of every learner—can be a challenge. Activating Math Talk tackles this challenge by bringing practical, math-specific, productive discourse techniques that are applicable to any lesson or curriculum. Framed around 11 student-centered discourse techniques, this research-based book connects purposeful instructional techniques to specific lesson goals and includes a focus on