What is the reasoning inside the street party picture book

The reasoning of the picture book of the street party is as follows:

1. This article is a narrative, by telling the story of Albert's family actively participate in the street party, everyone hung flags and balloons for the party, played music and placed a lot of food, more and more food on the table, everyone was immersed in a joyful atmosphere, but only Albert realized that the table built with wooden boards and boxes for placing the food was about to collapse, he was in a hurry to use the back of his chair to hold the table, but Rosie saw that Albert did not have a chair to sit on, and brought a chair for him, causing the table to collapse. He uses the back of his chair to hold the table, but Rosie sees that Albert has no chair to sit on and brings one for him, causing the table to collapse and emphasizing the theme of people and society - the traditional festival.

2. Through the main character sharing food on the street, etc., highlighting the idea of learning to share.