A study from Bellwether Education Partners establishes the need to focus on the mathematics education of young Dual Language Learners (DLLs). It presents lessons from research and practice on engaging families of DLLs in early mathematics learning. Unfortunately, the report omits major studies that are key to advancing our understanding of the capacity of young DLLs to engage in rigorous mathematical concepts when given opportunities to do so. Also, in its recommendations for teacher education/professional development, the report misses the opportunity to address what early childhood educators need to know about how young DLLs develop languages. Nonetheless, this report can inform policymakers and other stakeholders as they build asset-based programs that can support families and communities in engaging young DLLs in mathematics learning. (author abstract)