answer:(1) The sequence {a_n} satisfies a_1=1, na_{n+1}-(n+1)a_n=1+2+3+...+n=frac{n(n+1)}{2}. Then, we have frac{a_{n+1}}{n+1}-frac{a_n}{n}=frac{1}{2} (a constant). Thus, the sequence {frac{a_n}{n}} is an arithmetic sequence with the first term 1 and the common difference frac{1}{2}. Hence, we can write the n^{th} term of the sequence as frac{a_n}{n}=1+frac{1}{2}(n-1). When n=1, the first term satisfies the general term formula, so frac{a_n}{n}=1+frac{1}{2}(n-1) holds true. (2) Since frac{a_n}{n}=1+frac{1}{2}(n-1), we can simplify a_n as a_n=frac{n(n+1)}{2}. Therefore, b_n=frac{1}{a_n}=2(frac{1}{n}-frac{1}{n+1}). Now, we can find the sum of the first n terms of the sequence {b_n} by computing S_n=b_1+b_2+...+b_n. S_n=2(1-frac{1}{2}+frac{1}{2}-frac{1}{3}+...+frac{1}{n}-frac{1}{n+1}) =boxed{frac{2n}{n+1}}.

answer:Bullying is a persistent concern that we take very seriously here at our school. As the principal, my approach is multifaceted and involves the entire school community. We have a zero-tolerance policy towards bullying, and our goal is to create a safe, inclusive environment where every student can thrive. First and foremost, we emphasize prevention through education and awareness. We incorporate anti-bullying programs into our curriculum, starting from freshman year, to teach students about empathy, kindness, and respect for their peers. We also have workshops and assemblies that address the consequences of bullying and the importance of bystander intervention. When incidents of bullying are reported, we take swift and decisive action. We have a dedicated team of counselors and administrators who investigate each incident thoroughly, gathering information from all parties involved, including witnesses. We also have an anonymous reporting system in place, which allows students to report incidents without fear of retaliation. Once we've established the facts, we take disciplinary action against the perpetrator, which can range from counseling and mediation to detention, suspension, or even expulsion, depending on the severity of the incident. We also provide support to the victim, including counseling and peer mediation, to help them feel safe and supported. But we don't just stop at punishing the bully. We also work with the perpetrator to understand the underlying reasons for their behavior and provide them with the necessary support and counseling to change their behavior. We believe that every student deserves a second chance, and our goal is to help them learn from their mistakes and become better members of our school community. We also engage with parents and guardians throughout the process, keeping them informed about incidents involving their child and working with them to develop strategies for supporting their child's well-being. Ultimately, my goal as principal is to create a school culture that values kindness, empathy, and respect for all students, regardless of their background, identity, or social status. By working together, I believe we can reduce bullying and create a safe, supportive environment where every student can succeed.

answer:Student cliques are a challenging issue that we deal with at our high school. While it's natural for students to form social groups and friendships, cliques can sometimes lead to exclusivity, social isolation, and even bullying. We've seen instances where certain groups have formed and, intentionally or unintentionally, excluded others, making them feel like they don't belong. One of the problems with cliques is that they can create a sense of hierarchy within the school, where certain groups are seen as more popular or influential than others. This can lead to students feeling pressure to conform to certain norms or behaviors in order to fit in, rather than being themselves. To address this, we've implemented several initiatives to encourage inclusivity and diversity. For example, we have a club fair at the beginning of the year, where students can sign up for various extracurricular activities and clubs that interest them. This helps students meet new people and form connections outside of their usual social circles. We also organize events and activities that bring students together, such as spirit weeks, volunteer opportunities, and cultural festivals. These events help to break down barriers and foster a sense of community among our students. In addition, our school counselors and advisors work closely with students to identify and address any issues related to cliques and social isolation. They provide guidance and support to students who may be struggling to find their place within the school, and help them connect with peers who share similar interests. Another approach we've taken is to encourage students to take on leadership roles and get involved in student government, clubs, and organizations. This helps to distribute power and influence more evenly among different groups, rather than having a single clique dominate the social scene. Lastly, we also engage with parents and guardians on this issue. We encourage them to talk to their children about the importance of inclusivity and empathy, and to model these behaviors themselves. By working together, we can create a more positive and welcoming school culture that values diversity and promotes social cohesion. It's an ongoing effort, but I'm proud to say that we've made significant progress in reducing the negative impact of cliques at our school. We still have work to do, but I'm confident that by continuing to work together, we can create a more inclusive and supportive environment for all our students.

answer:As a school, we take incidents of drug use or distribution on campus extremely seriously. We have a zero-tolerance policy towards substance abuse, and our primary concern is the safety and well-being of our students. We have a comprehensive program in place to prevent, identify, and address incidents of drug use or distribution on campus. This includes regular monitoring of the campus by our security team, as well as random searches of lockers and personal belongings. If a student is suspected of using or distributing drugs on campus, we take immediate action. We have a team of administrators and counselors who will investigate the incident, and if necessary, involve local law enforcement. If a student is found to be in possession of or under the influence of a controlled substance, we will take disciplinary action, which can range from suspension to expulsion, depending on the severity of the incident. We also provide support and counseling to help the student address any underlying issues that may be contributing to their behavior. We also have a strong partnership with local law enforcement and work closely with them to address any incidents that may involve the distribution or sale of drugs on campus. If necessary, we will involve law enforcement in the investigation and prosecution of any incidents that involve the distribution or sale of controlled substances. In addition to disciplinary action, we also provide education and support to help students make positive choices and avoid substance abuse. We have a health education program that includes information on the risks and consequences of substance abuse, as well as counseling services to help students cope with stress, anxiety, and other issues that may lead to substance abuse. We also engage with parents and guardians through workshops, seminars, and individual meetings to educate them on the signs and symptoms of substance abuse and to encourage them to talk to their children about the dangers of substance abuse. We also have a confidential reporting system that allows students, parents, and staff to report any concerns or incidents of substance abuse anonymously. It's worth noting that we also have a school resource officer (SRO) who is a sworn law enforcement officer that works on campus and is trained to handle incidents of substance abuse and other safety concerns. The SRO also provides education and support to students and staff on substance abuse and other safety issues. Ultimately, our goal is to provide a safe and supportive learning environment for all our students, and we will do everything in our power to prevent and address incidents of substance abuse on campus.