The development of subject-specific word lists to assist EFL learners is becoming popular, as is the utilization of CLIL to teach English in academic areas of science. The purpose of this research was to investigate the effects of the instruction of English Science Textbooks Word Lists (ESTWL) and the CLIL approach on the Science Vocabulary…

Vocabulary is a building block of understanding, especially in science classrooms where language abilities are mixed. To reduce academic inequalities, approaches to vocabulary instruction need to demonstrate benefits for students across learning contexts. We summarize the results from the first unit, "Earth Systems and Catastrophic…