Yesterday I learned how to make a triangle pop up without taping an extra piece to the fold. Originally, I made a triangle pop up by taping it to the fold and then I tried to create the same popup out of the piece of paper with the fold. I figured out that by placing the triangle in the center of the fold and scoring the bottom folds into another triangle shape I could make the triangle pop up. Originally I tried to make the bottom of the triangle flat but that didn't give it the popup I wanted. I had to figure out the right way to make my bottom triangle folds and ended up making it, but it didn't look very clean. Today I hope to perfect the fold I was trying to make yesterday.