The problem of making pancakes in the shortest time in the wide-angle optimization teaching of mathematics in the fourth grade, if you make at most two cakes at a time, when the number of cakes is greater than 1, the shortest time of pancakes = baking 1 time × number of cakes.
Students should learn to think from the perspective of mathematics when doing wide-angle problems in fourth-grade mathematics. For example, 1 cake needs to be branded on both sides, but it can be branded on both sides at one time, so theoretically 1 cake needs to be branded once, but only one cake is a special case and the pot cannot be fully utilized.
Wide-angle optimization of fourth grade mathematics (pancake problem)
Pancake problem is one of the concrete scenes of optimization thought. How to achieve the goal of baking cakes and optimizing time? First, we must make clear the rules, make reasonable arrangements, optimize the time, save time as much as possible and eat the cake as soon as possible.
In addition, it should be noted that teachers can introduce some math problems through scenes that children are familiar with. After discussion, students can feel that mathematics is everywhere in life, stimulate curiosity, use what they have learned to find strategies and methods to solve problems from the perspective of mathematics, compare various schemes and find the best one.