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A graphic detailing the day-to-day comparison between alternate-day scheduling and block scheduling is shown. Block scheduling uses the same schedule every day of the week, while alternate-day scheduling alternates between A and B schedules every other day.
A graphic detailing the day-to-day comparison between alternate-day scheduling and block scheduling is shown. Block scheduling uses the same schedule every day of the week, while alternate-day scheduling alternates between A and B schedules every other day.
Photos by Vivian Kirby
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Comparing school scheduling: block vs alternate-day

Approaches to school scheduling

School scheduling systems have been a topic of debate since the establishment of compulsory education. There are many different routes to take when deciding break times and the daily scheduling of classes.

For break times, the most popular systems in public schools are traditional scheduling (with a summer break) and year-round schools (with three-week breaks after every quarter). Class scheduling has other options, like traditional scheduling (with eight classes in one day), block scheduling and alternate day scheduling.

Schools with traditional scheduling have become less popular in the 21st century, as having so many classes in one day can be overwhelming and not leave much room for class activities with short class periods. An alternative approach explored by schools recently is four classes per day, with 90 minutes for class time, but there are additional adaptations to this idea.

Alternate day schedules still have students take eight classes at once, and similar to traditional scheduling, they last the whole year. Every other day, they have a specific schedule to follow, with their classes being assigned and split between A days and B days. Block scheduling, on the other hand, has students take four classes per semester, which they would attend every day. This is more similar to college scheduling, which mostly has semester-long classes.

Alternate-day (A/B) schedule

An A/B schedule is a system where students attend four classes one day and a different set of four classes the next, creating alternating A and B days. This unique schedule makes school feel more manageable by breaking up the workload and giving students a break between sets of classes required for each day. 

With only four subjects for each day and a different four the next, it becomes easier for students to stay organized, keep up with assignments, and avoid feeling overwhelmed by allowing an extra day for completing unfinished work. Students also regularly receive extra time for assignments because weekends are not accounted for in the A/B day rotation. The alternating schedule also helps create a balanced routine, giving students time to reset between classes, which makes the overall school experience less stressful.

Another advantage of an A/B schedule is that it gives students more time outside of class to complete their work and stay on top of responsibilities. Since classes don’t meet every day, students can better plan when to study, finish assignments, or prepare for upcoming tests. This extra flexibility can reduce last-minute cramming, which encourages better test grades overall, and helps students develop stronger time-management skills. 

Overall, the schedule supports a more balanced academic routine, making it easier for students to handle school alongside extracurricular activities, jobs, or personal commitments. With more time in between classes, students often feel less overwhelmed and can better organize their work and study habits, helping them maintain a strong academic performance while still having time for activities and responsibilities outside of school. 

 

Although there are major advantages to A/B scheduling, the system creates several academic and social challenges. By alternating between the different days, students go an entire day without going back to review subjects they had learned. Over a full school year, these gaps can negatively affect learning, communication, and classroom relationships.

 

One major issue with this schedule is the extensive amount of time between different classes, especially for skill-based subjects like math and foreign languages that rely on consistent practice. When students meet every other day, they have the opportunity to forget the material more easily and lose momentum between lessons. If a student struggles with a topic on Monday, they may not receive proper clarification until Wednesday, slowing down the learning process. This gap can make it harder for students to build strong academic habits and retain information over time.  

 

Another disadvantage of the A/B system is the weaker teacher-student relationships it can create. Teachers and students only see each other every other day, which limits daily interaction and communication. In a traditional block schedule, teachers can check in with students regularly, notice struggles sooner, and build stronger personal connections. With an alternating schedule, those opportunities are reduced as students and teachers spend a less consistent amount of time together. This can make students feel less comfortable asking for help or participating in class discussions. 

 

Although A/B schedules may provide some flexibility, the disadvantages can outweigh the benefits for many students. The long gaps between classes, reduced consistency in practice, weak relationships, and many more factors can all negatively affect the overall educational experience.

Block schedule

Block scheduling, which is what we have at Athens Drive, has its advantages and disadvantages when compared to other scheduling alternatives. For example, workloads are usually lighter because students only have to take four classes at a time. On the contrary, classes may feel rushed as teachers have to condense a year-long curriculum into just one semester.

 

Spring semester AP classes especially move at a faster pace as teachers have to go through the whole curriculum before May, when the AP exams take place. This can be overwhelming for both teachers and students, who need to cover all of the material in the span of about three months. In contrast, fall semester AP classes have more time to learn all of the units, but they still have their challenges as well. Due to the fact that AP exams are scheduled in May, students who took a class in the fall semester may not score as well since they learned all of the material the previous semester.

 

Though many teachers do hold review sessions of the content in the weeks leading up to the exams, much of the information has been forgotten by students over the course of the spring semester, so additional studying on their own time will likely be needed if a student wants to achieve a certain score. Studying for AP exams for fall classes can be extra overwhelming in the weeks leading up to the test, as students still have to keep up with their assignments and homework from their current classes.

 

On the other hand, block scheduling better prepares high school students for college life, as most colleges and universities also have semester-long classes; however, this can mean that students foster fewer connections and relationships with their teachers and peers due to the fact that classes only last a full semester. 

 

But that can sometimes be a good thing; if a student dislikes their teacher or class, they won’t have to endure it the whole year. Semester-long classes can be beneficial for students needing to complete their required courses, as if one dislikes a certain subject, the class only lasts one semester.

 

With block scheduling, school days can feel extremely repetitive with the same class schedule repeating daily. Alternate-day class scheduling can offer more variety in activity day by day. Variety can assist with burnout, as repetitive days can be draining and take a toll on the mental health of students. 

 

Ultimately, both scheduling systems provide their own disadvantages and advantages for students, and it is mostly subjective to each individual when determining which system would be most beneficial.

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