Final answer:
The flipped classroom mainly focuses on customized learning environments.
Step-by-step explanation:
The flipped classroom mainly focuses on customized learning environments. It acknowledges that individualized face-to-face instruction can be more effective than lecturing to a group. In a flipped classroom, students engage with the content outside of class, such as through watching pre-recorded videos or reading materials, and class time is used for interactive activities, discussions, and clarifying concepts.