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The Basics of Math—Made Clear

    Basic Math introduces students to the basic concepts of mathematics, as well as the fundamentals of more tricky areas. These 30 fantastic lectures are designed to provide students with an understanding of arithmetic and to prepare them for Algebra(代数) and beyond.

    The lessons in Basic Math cover every basic aspect of arithmetic. They also look into exponents(指数), the order of operations, and square roots. In addition to learning how to perform various mathematical operations, students discover why these operations work, how a particular mathematical topic relates to other branches of mathematics, and how these operations can be used practically.

    Basic Math starts from the relatively easier concepts and gradually moves on to the more troublesome ones, so as to allow for steady and sure understanding of the material by students. The lectures offer students the chance to “make sense” of mathematical knowledge that may have seemed so frightening. They also help students prepare for college mathematics and overcome their anxiety about this amazing—and completely understandable—field of study.

    By the conclusion of the course, students will have improved their understanding of basic math. They will be able to clear away the mystery(神秘性) of mathematics and face their studies with more confidence than they ever imagined. In addition, they will strengthen their ability to accept new and exciting mathematical challenges.

    Professor H. Siegel, honored by Kentucky Educational Television as “the best math teacher in America,” is a devoted teacher and has a gift for explaining mathematical concepts in ways that make them seem clear and obvious. From the basic concrete ideas to the more abstract problems, he is master in making math lectures learner-friendlier and less scary.

    With a PhD in Mathematics Education from Georgia State University, Dr. Siegel teaches mathematics at Central Arizona College. His courses include various make-up classes and a number of lectures for future primary school teachers.

    If the course fails to provide complete satisfaction to you, you can easily exchange it for any other course that we offer. Or you can get your money back.

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近代以来世界科学和思想领域重大变化。阅读下列材料,回答问题。

材料一  1962年,日本学者汤浅光朝运用统计学的方法对近代科学成果进行定量分析时发现,从16世纪至20世纪,世界科学中心发生了5次大的变迁,即:意大利(1540年-1610年)、英国(1660年-1730年)、法国(1770年-1830年)、德国(1810年-1920年)、美国(1920年——现在),转移周期大约为80年,科学史界称为“汤浅现象”。

材料二  1751年,在著名的唯物主义哲学家狄德罗主持下开始编撰一部《百科全书》,全名为《百科全书或科学、艺术、技艺详解辞典》。参加撰稿的多达160人,其中有启蒙思想家伏尔泰、孟德斯鸿,自然科学家达朗贝、孔多塞,哲学家拉美特利、爱尔维修、霍尔巴赫,文学家博马舍,经济学家魁奈、杜尔阁等人.参加编撰的作者被人们尊称为“百科全书派”。他们人数众多,影响极大,成为法国启蒙运动的中心.百科全书的编写,既吸收了当时自然科学和社会科学的最新成果,又有力地推动了启蒙运动的深入发展。

——刘柞昌王觉非《世界史.近代史编》上卷(第二版)

材料三  1917年蔡元培演讲宗教信仰,演说词发表于《中华新报》,其中提出科学无法解决时间和空间的问题,只能靠哲学解决。当时在日留学的许崇清发文反驳:“方今自然科学界关于时空(即宇与宙)之研究,则有爱因斯坦于1905年发表之‘相对性原理’”,然后他简要介绍了狭义相对论,就此成为中国介绍狭义相对论第一人。1920年蔡元培对爱因斯坦发出邀请,并得到其本人应允。虽然爱因斯坦因故未能成行,但相对论却在中国广泛传播。从1917年到1923年,各种报刊登载相对论的论著、译文、通讯、报告和文献不下百篇,出版译著15种左右。