Consult real journal papers for examples. There are additional minor sections that precede or follow the major sections including the title, abstract, acknowledgements, references, and appendices. All sections are important, but at different stages to different readers. When flipping through a journal, a reader might read the title first, and if interested further then the abstract, then conclusions, and then if he or she is truly fascinated perhaps the entire paper. You have to convince the reader that what you have done is interesting and important by communicating appeal and content in all sections.
Title Convey the essential point of the paper.
Be precise, concise, and use key words. Abstract Condense the whole paper into miniature form. No new information, no supporting material, limited details, just the essential message that explains what you did and found out. Write this section last of all. Craft this section carefully, setting up your argument in logical order.