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.
Many students will have completed some form of pre-algebra or even algebra 1 by the time they enter high school, although geometry is occasionally taught in eighth grade as an honors course. In high school, the general math curriculum includes algebra 1, algebra 2 and geometry in ningth and tenth grades. High school mathematics can continue with the study of algebra 3, otherwise known as trigonometry, around 11th grade.