THEORY: Explain the phenomenon, concept in words, and build the reasoning for the formula in your own words. Write the formula and draw diagram. then continue to write the followings ignoring page number. PROCEDURE : Write in your own words with numbering what you have done. For Example: 1. Mass of the ball is measured with a balance. Do not write like: “ measure (or I measured) the mass of the ball with a balance because you do not report to any one saying do this, do that!” 2. —— 3. …… CALCULATION: DATA in tabular form; graph if needed , calculations of results in details DISCUSSION: Error analysis, and comments to improve the results .