Why did the Articles of Confederation have to be replaced by the Constitution?

Explanation:

The article of conference was replaced by the constitution because federal government was weak, most of the power states government were controlled by and had no support, therefore when the constitution was built from a new government

because its important to learn about other countries and how high tech they are compared to us. also its good to learn about other cultures and how ours differs and in common also we need to learn about companies that we still buy since they ship it here.