Can you help me write an essay of 450 words on the topic " Substance Abuse in schools"

This is a HUGE subject -- way too broad to address in "an essay." Here are some ideas for helping you narrow your focus to a topic that can be addressed in a paper:

http://writing.colostate.edu/guides/processes/focus/list5.cfm
So ... what aspect of substance abuse do you intend to write about?

If you have followed the writing process, you would have done some brainstorming to come up with ideas. Have you done this?

Have you decided on a thesis statement? Usually this comes from your brainstorming also.

http://leo.stcloudstate.edu/acadwrite/thesistatement.html
This is one of the very best places I've seen online to help students write good thesis statements. It shows you sentences that aren't thesis statements and how to turn each one into a real thesis statement.

Just remember: Your thesis statement must include factual information plus your position/opinion/stance. Without your position on the topic, it isn't a true thesis statement. So think of this sentence as the angle you want to take on the topic and/or what you intend to prove by the end of your paper. (If your statement is simply factual, then there's nothing to prove!)

And here is an excellent website to help you go through all the steps of the researching and writing process:
http://www.ipl.org/div/aplus/
Whether you are writing a full-blown research paper or a 5-paragraph essay, <click on Step by Step (at the right) and follow the directions.

Of course! I can definitely help you write an essay on the topic "Substance Abuse in schools." Here are the steps to get started:

1. Understanding the topic: Begin by researching and gaining an understanding of substance abuse in schools. Look for statistics, facts, and studies related to substance abuse among students. This will help you develop a strong background and provide evidence for your essay.

2. Create an outline: Before writing, plan the structure of your essay. Start with an introduction that grabs the reader's attention and provides some background information on the issue. Then, outline three main points or arguments to support your thesis statement. Finally, plan a conclusion that summarizes your main points and provides potential solutions or recommendations.

3. Introduction: Begin your essay with a hook, such as an interesting fact or a thought-provoking statement regarding substance abuse in schools. Provide some background information on the topic, including its significance, prevalence, and impact on students' academic performance and overall well-being.

4. Body paragraphs: In each body paragraph, discuss one of the main points or arguments mentioned in your outline. Start each paragraph with a topic sentence that introduces the main idea of the paragraph. Support your arguments with evidence, such as statistics, case studies, or personal anecdotes. You could also include information about the main substances abused in schools, such as alcohol, tobacco, or illicit drugs. Remember to cite your sources properly.

5. Counterarguments: Address potential counterarguments in your essay. Acknowledge opposing viewpoints and provide a refutation to strengthen your arguments. This will demonstrate your ability to consider different perspectives and make your essay more persuasive.

6. Conclusion: Summarize your main points and restate your thesis statement in the conclusion. Offer possible solutions or recommendations to combat substance abuse in schools. End your essay with a strong concluding statement that leaves a lasting impression on the reader.

7. Proofread and revise: After completing the initial draft, proofread your essay for grammatical errors, spelling mistakes, and clarity of expression. Make sure your arguments flow logically and that each paragraph supports your main thesis. Revise as needed to enhance the overall coherence and effectiveness of your essay.

Remember, this is just a general guide to help you get started. Feel free to adjust the process to suit your own writing style and preferences. Good luck with your essay!