Plagiarism involves stealing others' ideas or writing without giving them proper credit. Just as stealing a bookbag or money would be wrong, taking someone else's thoughts or words without attribution is also wrong. To avoid plagiarism, students should give credit to the original author by listing their name, the title of their work, and publication details when using others' ideas or words, even if rephrased. Teachers can help students understand plagiarism and find lesson plans on the topic.