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);
First Grade Math: What Happens. Reading and writing are important and challenging skills for your first grader to learn, but math comes in close behind them. First grade math is generally made up of skills that can be divided into groups such as number sense, geometry, operations, and problem solving.
Take AP math classes. Because math is the language of astrophysics, you will need to start honing your math skills in high school. Take advanced classes like calculus AB and BC, computer science A and principles, and statistics classes. To qualify for AP classes in high school, take pre-algebra classes in middle school.