About Us

Dr. William Zahner is an associate professor in the mathematics and statistics department at San Diego State University. Zahner's research investigates how to design secondary mathematics classrooms to improve student learning,

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Presentations & Publications

mELd Publications Wynn, L. & Zahner, W. (2018, November). Connections among curriculum, tasks, and linguistically diverse secondary students’ understandings of rates of change. In T. M. Hodges, G. J. Roy,

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STEM Videohall

We made a video for the NSF's STEM For All Videohall. Watch the video and join the discussion! https://stemforall2019.videohall.com/presentations/1402

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Summer Professional Development

On August 16 and 17 we held a two-day collaborative meeting at the Center for Research in Mathematics and Science Education. In attendance where three teachers and our reteach team.

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San Diego Educators Working To Make Math Friendlier For English Learners

Our project was featured in a radio and television broadcast by KPBS. Megan Burks the education reporter attended one of our project meetings and interviewed our collaborating teachers. If you

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Welcome to mELd

Our Mission

Our goal is to create opportunities for all students, including students learning English, to learn rigorous mathematics.

Why it Matters

Mathematics teachers at all levels are responsible for developing mathematical proficiency among all of their students. Achieving this goal is especially challenging in linguistically diverse classrooms because English Learners must simultaneously develop understandings of key mathematical concepts while developing fluency in academic English. Nearly 25% of California students are classified as English Learners, yet many of them do not have access to opportunity to learn mathematics. The stakes are especially high in the modern era, where we expect students to learn both rigorous content and 21st century skills such as modeling with mathematics and engaging in argumentation.