The basic aim of the course is to teach the pupils to use English through material which has been structurally graded and integrated. Integration has been based on the following principles: Nothing will be spoken before it has been heard. Nothing will be read before it has been spoken. Nothing will be written before it has been read. There are 60 Teaching Units in Book One. Each Teaching Unit consists of two classroom lessons making 120 lessons in all of 30-45 minutes each. The presentation is entirely audio-visual at the outset but becomes audio-visual-lingual after the pupils have made some progress.
A guide to the plants that cause billions of dollars annually in crop loss and control measures including information on the harm that weeds cause, their benefits from weeds, and major habitats.
The Golden Science Guides were instrumental in sparking my interest in science when I was a kid, and my favorite was what I called "the weather book." Though this book hails from a time when weather satellites were brand-new and El Nino meant nothing to non-Spanish speakers, it nonetheless offers much valuable information about basic concepts in meteorology, clearly explained with simple yet beautiful illustrations.
Skills Booster is a four-level series specially written to teach and develop young learners' listening, speaking and writing skills. While the series has been designed to be compatible with any course book of a similar level, it may also be used on its own.
