There are only so many hours in a day, a week, and a term. You cannot change the number of hours, but you can decide how to best use them. To be successful in school, you must carefully manage your study time. Here is a strategy for doing this.
Prepare a Term Calendar
At the beginning of a term, prepare a Term Calendar. Update it as the term goes on. Here is what to do to prepare a Term Calendar.
Record your school assignments with their due dates and your scheduled tests.Record your planned school activities.
Record your planned school activities.
Record your known out-of-school activities.
Prepare a Weekly Schedule
Each Sunday before a school week, prepare a Weekly Schedule. Update it as the week goes on. Here is what to do to prepare a Weekly Schedule.
Record your daily classes.
Enter things to be done for the coming week from your Term Calendar.
Review your class notes from the previous week to see if you need to add any school activities.
Add any out-of-school activities in which you will be involved during the week.
Be sure to include times for completing assignments, working on projects, and studying for tests. These times may be during the school day, right after school, evenings, and weekends.
Prepare a Daily Organizer
Each evening before a school day, prepare a Daily Organizer for the next day. Place a √ next to each thing to do as you accomplish it. Here is what to do to prepare a Daily Organizer.
Enter the things to do for the coming day from your Weekly Schedule.
Enter the things that still need to be accomplished from your Daily Organizer from the previous day.
Review your class notes for the day just completed to see if you need to add any school activities.
Add any out-of-school activities in which you will be involved the next day.
Your Weekly Schedule should have more detail than your Term Calendar. Your Daily Organizer should have more detail than your Weekly Schedule. Using a Term Calendar, a Weekly Schedule, and a Daily Organizer will help you make the best use of your time.

Many students have difficulty concentrating while studying. Being able to concentrate while you are studying is essential to doing well in class and on tests.
Here are 10 suggestions for improving your study concentration:
Study in a quiet place that is free from distractions and interruptions. Try to create a space designated solely for studying.
Make a study schedule that shows what tasks you need to accomplish and when you plan to accomplish each task. This will provide you with the structure you need for effective studying.
Try to study at the time of day you work best. Some people work well early in the morning, others late at night. You know what works best for you.
Make sure you are not tired and/or hungry when you study. Otherwise, you won't have the energy you need to concentrate. Also, maintain your physical fitness.
Don't try to do two tasks at the same time. You won't be able to concentrate on either one very well. Concentration means focusing on one thing to the exclusion of all else.
Break large tasks into series of smaller tasks that you can complete one at a time. If you try to complete a large task all at once, you may feel overwhelmed and will be unable to maintain your concentration.
Relax. It's hard to concentrate when you're tense. It's important to relax when working on a task that requires concentration. Meditation is helpful to many students.
Clear your mind of worrisome thoughts. Mental poise is important for concentration. You can get distracted by your own thoughts. Monitor your thoughts and prevent yourself from following any that take you off track. Don't daydream.
Develop an interest in what you are studying. Try to relate what you are studying to you own life to make it as meaningful as possible. This can motivate yourself to concentrate.
Take breaks whenever you feel fatigued. There is no set formula for when to take breaks. You will know when you need to take a break.
Studying without concentration is like trying to fill a bucket with water when the bucket has a hole in its bottom. It doesn't work.