Ms. Valerie Parasmo’s AP World History 10th grade students worked diligently to prepare for their first AP exam. They stayed after school to strengthen their knowledge and created thinking maps to review all six time periods of world history, from the dawn of man to modern-day events. Creating tree maps were an effective method to review the time periods and the five themes of AP world history overtime. These themes included human interaction with the environment, culture, politics, economics and social classes.