by Natalia Heckman If you are an ESL teacher, you have probably heard about Stephen Krashen. If you are an administrator, you have probably heard about John Hattie. If you have ever attended a campus accountability meeting, you must be familiar with the phenomenon of language stagnation. So what do Krashen, Hattie, and language stagnation … Continue reading Minimax Principle and Secondary Long-Term English Learners