Binary tree

A binary tree is like a flip book. Imagine you open up the cover of the flip book and inside there are two pages. Each page in the flip book has two choices, like a yes or no choice (these choices are called branches). If you pick yes, then you turn the page and get another two choices. That's how a binary tree works. Each branch of the tree is like a page in the flip book and each page has two choices. Depending on how you answer each question you end up in different places in the tree.