Final answer:
The main idea is the origin of basketball, the topic sentence is about basketball's interesting beginning, and the details include the game's creation for winter activity and the inventor James Naismith.
Step-by-step explanation:
The main idea presented is the origin story of basketball which began as a winter activity for the athletes at Springfield College in Massachusetts. The topic sentence that introduces this idea is: "The sport of basketball has a very interesting beginning." Two supporting details that bolster the topic sentence are: "It started simply as a game to give the athletes of Springfield College in Massachusetts something to do in the cold winter months." and "In December 1891, James Naismith, a physical education teacher at the college, invented the game."
To organize these thoughts using a graphic organizer, we begin by placing the topic sentence at the center or the top as the main idea. Below this, we branch out into two sections, one for each of the supporting details. In the first section, we could note the purpose of the game’s creation, which was to occupy athletes during winter. In the second section, we could detail the specific event and the inventor, being James Naismith’s creation of the game in December of 1891.