3 ideas
Each woodcut marks its parts with numbers, and the same numbers appear beside the matching nouns in the Latin and German text beneath it. The learner's eye moves back and forth between the numbered detail in the picture and the numbered word, so each term is tied to one specific visible thing.
Comenius argues that the senses are the first gateway to understanding. A child who learns a word without the thing it names acquires empty sound. Instruction should therefore present the object, or a faithful picture of it, first and attach the name to that perception, so language is built on sensory experience and not rote verbal memory.
The book arranges 150 scenes to move from God and the heavens through elements, plants, animals, the human body, trades, the city, and the moral virtues, ending with the Last Judgment. Its order is the order of the world, not the order of grammar. Seen this way, a primer becomes a compressed map of all creation, and learning to read is the same act as learning how the world fits together.