In Problem-Based Learning (PBL), a problem is posed before students have learned how to solve it. Language and PBL pair well for effective learning environments. Informed by language-based theories of learning and strategically adding methods for working with English Language Learners (ELLs), we developed an approach called Problem-Based Enhanced-Language Learning. In this article, we provide the background for the approach and explain the specifics of implementing "Bears in a Boat," which we have used in many contexts including a second-grade urban classroom and a third-grade US-Mexico border classroom with significant numbers of ELLs. The science content learner outcomes are that students will be able to: (a) describe what it means to sink and float and (b) explain that the more weight you add to a boat, the deeper it will float.