The Catechetical School of Alexandria was a place where people went to learn about Christianity a long time ago. It was kind of like a school, but instead of math and science, they taught about God and how to live a good life. People who went to this school were called catechumens, and they studied with teachers called catechists.
The catechists who taught at the Catechetical School were really smart and knew a lot about the Bible and other important writings. They believed that learning about the Bible and understanding how to live a good life could help people to become closer to God.
One of the most famous catechists at the Catechetical School of Alexandria was a man named Origen. He wrote a lot of books about Christianity and taught many people about God. He believed that the Bible could be interpreted in many different ways and that people should use their own knowledge and understanding to figure out what it meant.
The Catechetical School of Alexandria was also known for being very open-minded and accepting of people from different backgrounds and beliefs. They believed that everyone could learn about God and that everyone could be saved, no matter who they were.
So, in short, the Catechetical School of Alexandria was a really cool place where people went to learn about God and how to live a good life. They had really smart teachers who taught them about the Bible, and they welcome everyone to come and learn, no matter who they were.