Gradesheet (A 90-100) allows for you to track classroom grades on a master spreadsheet for a A = 90%-100% grading scale. Activities that you choose (homework, tests, quizzes, etc.) can be weighted by a percentage of the total grade and even weighted bonus points can be added in. Separate sheets are then created for each individual student to have a print out if you want to share their performance visually with charts and bar graphs with them or the student's guardian.
Excel cells are locked to avoid manipulation of calculation cells, but a color coded instruction key shows what needs to be input by the teacher.