Pure Mathematics 1 corresponds to unit P1. It covers quadratics, functions, coordinate geometry, circular measure, trigonometry, vectors, series, differentiation and integration.

    K. C. Cole's "Fun with Physics" is a profile of astrophysicist Janet Conrad that blends her personal life with professional activity. In "Desperate Measures," the doctor and writer Atul Gawande profiles the surgeon Francis Daniels Moore, whose experiments in the 1940s and '50s pushed medicine harder and farther than almost anyone had contemplated. Also included is a poem by the legendary John Updike, "Mars as Bright as Venus." The collection ends with Diane Ackerman's "ebullient" essay "We Are All a Part of Nature."Together these twenty-three articles on a wide range of today's most current topics in science -- from biology, physics, biotechnology, and astronomy, to anthropology, genetics, evolutionary theory, and cognition‚ represent the full spectrum of scientific writing from America's most prominent science authors, proving once again that "good science writing is evidently plentiful" (Scientific American).

    Anywhere you go, plastic is within easy reach - even in Antarctica and the North Pole.We didn't quit plastic overnight. In fact, it's still a work in progress. But along the way, we have learnt a lot by researching the issue from the grass roots up, speaking to people, and finding out what works and what doesn't. We answer the tricky questions, like 'How will I wash my hair?', 'Do I have to give up crackers?', 'What about my bin liner?' and 'Is this going to be expensive?' As we continue to remove throw-away plastics from our daily lives, we've discovered we're friendlier with our local communities, we're eating healthier food, and de-cluttering happens by itself. It feels great!