Tom Kelby and Mark Yaeger talk about Developing Leaders Biblical Theology—a curriculum designed to teach major concepts from all the sections of the Bible using simple pictures and words.
Use the links below to see the Developing Leaders curriculum. Here's the link for the introduction (in English) talked about in this episode:
https://handstotheplow.org/wp-content/uploads/DL-Intro-English-HR.pdf
Here's the link to the page where you can access all the sections and select your language.