Write a list of the children you are currently homeschooling as well as the individual subjects or classes each child has with every day of school. Organizing the classes and subjects you are teaching will allow you to get a visual representation of progress and grades without having to use only your memory.
Create a scale of grading for each assignment versus an essay or test you assign. Use a basic grading chart, or design your own with specific percentages and letter grades. An A is earned for scores between 90 to 100, while a B equals scores from 80 to 89, a C from 70 to 79, and a D from 60 to 69. Alternatively, create your own percentage scale to make higher grades easier or more difficult to achieve. Your child's essays and tests may be worth more if they are less frequent and contain more information and questions. Because you run your own homeschool, it is up to you to determine the type of assignments you give grades for and the type of work you do not.
Mark each assignment and test with a letter grade based on the total number of questions correct out of all of the questions on the assignment. At the end of each card marking or semester of your homeschool, add all of the homework grades together and divide the total number by the actual number of assignments given throughout the time period. This gives you the overall percentage of your child's grade for the subject. Use your percentage scale and letter grade chart to mark your child's grades in your grade book or log for future reference.