ChatGPT对于分析程序这种载体,具备天然的优势。我们在教孩子们编程的时候,经常困扰于如何用更好的方式给孩子们解释抽象的算法。这时候,我们就可以问问ChatGPT如何更好地向孩子们解释某些算法,例如,我问它如何更好地向孩子们解释冒泡排序,它给我的回答如下:
Imagine you have a bunch of colored balls that need to be sorted by their color. You start with the first ball and compare it to the one next to it. If the first ball is a different color from the second ball, you swap them. Then you move on to the second ball and compare it to the third ball. If they are in the wrong order, you swap them. You keep doing this until you reach the end of the line of balls. Then you start over again, going back to the first ball and comparing it to the second ball again. You keep doing this until all the balls are sorted by color.
在这个回答中,它用给彩球按颜色分类的思路来解释冒泡排序,我们可以在此基础上,配合图片或者动画,是不是就能更好地向孩子们解释冒泡排序呢?
下面是它给出的Python实现:
# Define the list of colors to be sorted
colors = ["red", "blue", "green", "yellow", "purple"]
# Define the bubble sort algorithm
def bubble_sort(colors):
n = len(colors)
# We need to loop through the list n times, because in the worst case scenario,
# we'll need to swap every pair of adjacent elements n times to ensure that the list is sorted
for i in range(n):
# We need to loop through the list from the beginning to the end, swapping any adjacent elements
for j in range(n - 1):
# Check if the current element is greater than the next element, and if so, swap them
if colors[j] > colors[j + 1]:
colors[j], colors[j + 1] = colors[j + 1], colors[j]
return colors
# Call the bubble sort algorithm on the list of colors
sorted_colors = bubble_sort(colors)
# Print the sorted list of colors
print(sorted_colors)
看起来还是比较直观的。可以进一步对其进行调校,让它更符合我们上课的要求。比如,针对上面的两层循环,我让它向孩子们解释双循环的概念,它给出的解释是:
Twin loops is a concept in computer programming that involves using two nested loops to perform a task. This can be a little tricky to explain to children, but here’s an example that may help make it more understandable:
Imagine you are baking cookies and you have a recipe that calls for rolling out the dough and cutting it into shapes with cookie cutters. You have a set of circular cookie cutters in different sizes, so you need to use the appropriate size cutter for each piece of dough.
To do this, you could use a twin loop: one loop to go through all the pieces of dough and another loop to go through all the different sizes of cookie cutters. You would start with the first piece of dough and the smallest cookie cutter, then move on to the next piece of dough and the next cookie cutter, and so on, until you have cut out all the cookies.
可能因为我用英语问的,也可能其语料主要是英语,所以它给出的答案是用做饼干作为例子的,也许我们可以改成做饺子?好像饺子没有那么多花样,这个本地化需要仔细琢磨一下。我进一步要求让它提供适合向中国孩子解释的例子,它给出的答案是:
Sure, here are a few examples of how the twin loop concept can be applied in different scenarios:
1. Drawing shapes on a piece of paper: Imagine you have a piece of paper and you want to draw circles of different sizes all over it. You could use a twin loop to go through each spot on the paper and each size of circle to draw. For example:
# Define the sizes of the circles to be drawn
circle_sizes = [10, 20, 30, 40, 50]
# Define the points on the paper to draw circles
paper_points = [(0, 0), (0, 10), (0, 20), (10, 0), (10, 10), (10, 20)]
# Use a twin loop to draw the circles
for point in paper_points:
for size in circle_sizes:
print("Drawing a circle of size", size, "at point", point)
2. Planting seeds in a garden: Imagine you have a garden and you want to plant different types of seeds in rows. You could use a twin loop to go through each row and each type of seed to plant. For example:
# Define the types of seeds to be planted
seed_types = ['carrots', 'lettuce', 'radishes', 'spinach']
# Define the rows in the garden to plant the seeds
garden_rows = ['row 1', 'row 2', 'row 3', 'row 4']
# Use a twin loop to plant the seeds
for row in garden_rows:
for seed in seed_types:
print("Planting", seed, "in", row)
*3. Building with blocks: Imagine you have a set of blocks of different sizes and you want to build a tower with them. You could use a twin loop to go through each block and each level of the tower to build. For example: *
# Define the sizes of the blocks to be used
block_sizes = [1, 2, 3, 4, 5]
# Define the levels of the tower to be built
tower_levels = [1, 2, 3, 4, 5]
# Use a twin loop to build the tower
for level in tower_levels:
for size in block_sizes:
print("Adding a block of size", size, "to level", level, "of the tower")
These are just a few examples of how the twin loop concept can be applied in different scenarios. By using a twin loop, you can perform a task that involves multiple dimensions (such as different sizes or different locations) in a more efficient and organized way.
看起来还是不错的。
回头再试试让它去评判程序、询问它如何改进,应该也可以将这个方法用到教学上。