Margo Gottlieb, Ph.D., is a staunch advocate for multilingual learners and their teachers. As co-founder and lead developer of WIDA at the University of Wisconsin-Madison in 2003, Margo has helped design and contributed to all the editions of WIDA’s English and Spanish language development standards frameworks and their derivative products. Being a bilingual teacher, facilitator, consultant, and mentor across K-20 settings, she has worked with universities, organizations, governments, states, school districts, networks, and schools in co-constructing linguistic and culturally sustainable curriculum and reconceptualizing classroom assessment policy and practice. Margo’s passion has always been assessment in its many forms, starting with her dissertation, a K-12 multilingual test in Spanish, Lao, and English that integrated content and language. Since then, she was appointed to national and state advisory boards, served as a Fulbright Senior Scholar, and was honored by the TESOL International Association in 2