Use a clear basis for comparing or contrasting. Use credible examples and details to illustrate your points. For block pattern , discuss one item fully, then the other. A block pattern is best used when the overall picture is more important than the individual points. This is best used when the points are more important than the overall picture.
Introduction is at least one paragraph and contains a clear thesis statement.
Introduction introduces the main points that will be expanded upon in the supporting paragraphs. Introduction invites the reader in. Supporting paragraphs should be at least three in number. Supporting paragraphs must each begin with a clear, underlined topic sentence. All other sentences in that paragraph must be relevant to the topic sentence.