Humber s Teaching English as a Second Language (TESL) graduate certificate program builds confident and knowledgeable teachers who have a full understanding of best practices in teaching English as a second language (ESL). Our innovative curriculum is based on the latest ESL teaching approaches, methods and assessment systems including the Canadian Language Benchmarks and the Common European Framework Reference (CEFR). You will be exposed to a wide range of theoretical issues including adult second language acquisition, learning theory, linguistics, the emerging field of teaching with technology, and portfolio-based assessment.