View the epidemic rationally, supported by mathematics - remember interesting practical homework during the holidays

? A new type of coronavirus-infected pneumonia epidemic made our Spring Festival extraordinary. All students, parents, and teachers must stay at home and minimize going out to cope with the epidemic. Under such an unexpected situation, the opening of the school has been postponed, but we have suspended classes but not stopped learning, and suspended classes without stopping research. Our mathematics group conducts research and leads the development of children’s winter vacation mathematics plans so that mathematics can really happen in real life.

? Crisis is also an opportunity, and life is homework. I led the children to search for mathematical problems in the fight against the epidemic, made research tables, and provided them with scaffolding to solve problems. Many mathematical problems are all around us, as long as we have a pair of eyes. For example: in the official epidemic data information announced on the Internet, TV, etc., in the family taking protective measures to go shopping, in the online classes you take, in the winter vacation plans you make, in the parent-child interactive dialogue...

? Now let us see how children use data to speak and how to rationally study the epidemic. Below is a summary and classification of children’s research perspectives:

Angle 1: Statistical chart.

A new type of coronavirus epidemic occurred during the Spring Festival. In order to collect statistics on the epidemic situation, some children decided to conduct a small survey. As of 12:00 am on February 2, 2020, what is the situation of the pneumonia epidemic? Some used line charts, some used bar charts, some used statistical tables, and some even used the fan chart that they were going to learn in the new semester. I was amazed at the children's learning and practical abilities! When summarizing the problems, based on the analysis, everyone felt that the epidemic was serious, and it was necessary to go out less, wash hands frequently, and strictly protect themselves, etc.

Through the double-entry statistical graphs drawn, I saw the children’s rigorous research attitude. Data has become a powerful tool for children to study problems, and their literacy is gradually improving.

The fan chart is the content of the fifth unit of Liuxia. I haven’t learned it yet. The following child used the fan chart to analyze and became familiar with it. I was amazed at the child’s learning and practical ability!

Angle 2: Ratio, percentage.

Angle Three: Four mixed operations of fractions.

There is a shortage of masks for front-line medical staff and they need to be allocated in time. How to meet the demand has created a mathematical problem.

Look at the children: the "turning points" all appear in homework. Give the children a platform, just waiting for them to bloom!

Angle 4: Common quantitative relationships, equation problems, etc.

Comparison of the prices of two types of masks, as well as discounts for shopping in supermarkets, etc.

? Crisis is an opportunity, and life is a platform. Children observe the epidemic from a mathematical perspective, use powerful data and calculations to support their conclusions, and learn to present facts and reason. This is research power. This mathematical practice homework has opened the door to children's research. I hope we will have a bright future!