World Development Indicators (WDI) is a tool that helps grown-ups and governments understand how countries are doing in important areas like health, education, and the economy.
Think of it like a giant report card for the world. Just like how your teacher gives you a report card at the end of the term to show you how you're doing in different subjects, WDI gives countries a report card to show how they're doing in different areas.
WDI has lots of information in it, but it's all organized into different categories. For example, one category is health. This section tells you things like how many babies are born each year, how long people are living, and how many people are getting sick.
Another section is education. This part tells you how many kids are going to school, how many girls are getting to go to school, and how well they are doing on tests.
Countries can use this information to figure out where they need to improve, and how they can do better. For example, if one country sees that it has a high infant mortality rate (which means lots of babies are dying), it might decide to invest more money in building hospitals or sending doctors to remote villages.
So basically, World Development Indicators are like a really fancy report card for the world that helps people and governments make good choices about how to make things better.