Grades that you earn now will have ramifications throughout your undergraduate career. Write to schools you are interested in, requesting copies of their admissions criteria and graduate catalogues. Discuss your interest in graduate school with faculty members and follow their suggestions. Ask them about what it is like to be a graduate student. Join professional organizations related to your field.
Many professional organizations allow students to join in some capacity at a reduced fee.
Some schools may require subject tests in addition to a general test. Plan your schedule so that you can fulfill these requirements before you graduate. Begin to devise a research project on your own with the support and guidance of a faculty member. Locate organizations which allow student participation and plan on submitting your paper to these organizations for presentation consideration. Write to those faculty whose interests are similar to your own.