The @import rule allows you to include external style sheets in your document. It is a way of creating a style sheet within your document, and then importing additional rules into the document. To use the @import rule, type: @import url(import1.css);
Math: 1st Grade. 1st graders continue to develop their addition and subtraction skills, gaining a deeper understanding of the concepts as they practice and gain mastery of these skills. In many classes, math tools and manipulatives, such as blocks, tiles, and different shapes are used to help students practice math using concrete, visible objects.
It is absolutely essential that a physicist be proficient with mathematics. You don't have to know everything - that's impossible - but you do have to be comfortable with mathematical concepts and how to apply them. To study physics, you should take as much high school and college mathematics as you can reasonably fit into your schedule. Especially, take the entire run of algebra, geometry/trigonometry, and calculus courses available, including Advanced Placement courses if you qualify. Physics is very math intensive and if you find that you dislike mathematics, perhaps you will want to pursue other educational options. Problem-Solving & Scientific Reasoning In addition to mathematics (which is a form of problem-solving), it is helpful for the prospective physics student to have a more general knowledge of how to tackle a problem and apply logical reasoning to arrive at a solution.