Sedimentary Rock Collection

Check it out! is a four-level series in American English that uses carefully chosen themes to introduce learners to global culture through the study of English. Age-appropriate language activities develop learners' reading, writing, listening, speaking, and pronunciation skills - and motivates them to use English. For students who are preparing to take international English examinations in the future Check it out! systematically introduces skills practice and question types which are commonly found on such exams.