Keeping a vocabulary notebook is one way to improve your English word choice. First, read articles and identify new words, writing them in a notepad. An online tool you can use with mobile access is http://www.myschoolnotebook.com/ Make two columns with the new word on the left and the definition (with synonym and example) on the right. You can divide the vocabulary into categories by using stickers or post-it’s to mark the different sections of your notebook. Refer to the vocabulary weekly to recall the words or make sentences. Here are some TOEFL topics that you could use as notebook sections:

Art (art, theater, literature, architecture, music, film)

Campus

Environment (Agriculture)

Food

Humanities (history, politics, government, law)

Life Science (Anatomy, Biology, Ecology, Genetics, Health, Paleontology, Zoology)

Social Sciences (anthropology, economics, archaeology)

Physical Sciences (Astronomy, Physics, Math, Computer Science, Earth Science)

Technology