All true learning has the truth of the Bible as its core foundation.
“From childhood you have known the Holy Scriptures, which are able to make you wise for salvation through faith which is in Christ Jesus. All Scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness, that the man of God may be complete, thoroughly equipped for every good work.” 2 Timothy 3:15-17
Bible is taught in a thoughtful and sequential way so that the child learns the beauty of the Scriptures from the beginning through the Revelation. As the child grows in knowledge of the Scripture, more abstract principles are investigated so that the child learns how to be a life-long student of the Bible.