Only when every notified team member continues to inform the following team members until all the notices are received, so that every notified team member will not be idle, is the fastest solution. The relationship between the time required and the person who can be notified should be n times two MINUS one (n is minutes).
The problem of making phone calls is a difficult point for students when they study. It tests everyone's inductive reasoning ability to solve practical problems. Through the process of reasoning, people can exercise their own ways to solve practical problems.
Call for the core of the problem:
Unit 6 "Call" in the second volume of fifth grade mathematics published by People's Education Press is how to find the best scheme of call in solving practical problems, so as to discover the hidden rules.
This kind of problem is generally difficult for many students and belongs to the category of mathematical thinking training. However, in the process of continuous learning and thinking, students can explore and reason by drawing pictures or tables. It can cultivate students' inductive reasoning ability, and at the same time feel and learn the mathematical thought of combining numbers and shapes.