Goodwall Self-improvement's post on Goodwall - As a lifelong learner with 4 degrees and a Ph.D. in mathematics, Hazel Wagner has spent her life learning how to learn. Hazel shares her work on mind mapping and what it can do for understanding, memorization, and retention. Hazel Wagner, Ph.D., MBA, CMC is a lifelong learner. She has four college degrees including a Ph.D. in mathematics from Northwestern University, which she earned while raising three children. She’s published four books on mathematics and business, including Power Brainstorming and Business, Brains, and B.S. She’s a cancer survivor, a volunteer, an entrepreneur, a pioneer in Criterion-Referenced Testing in education, and a researcher on how people learn difficult subjects in mathematics. Watch Now: https://www.youtube.com/watch?v=5nTuScU70As #selfimprovement #learning #mindmapping