ELLs need to practice using the language in their speech. Teachers can ask students to restate the definition in their own words and provide opportunities for students to use academic vocabulary in discussions. Chunking (instead of teaching inch in isolation, also teach foot, centimeter, and yard) helps students develop their schema and mentally organize their new vocabulary. Gestures and movements will help students remember what words mean. They'll be able to associate the meaning of a new word to a movement or gesture. Requiring students to keep a journal for math terms that contains definitions or nonlinguistic representations of words helps them learn better, too.