Texas Instruments, the company that made the graphing calculator the most ubiquitous learning tool since the book, is giving teachers everywhere an invaluable new tool for teaching science and math: zombies. Yes, zombies. Zombies on graphing calculators, no less. The walkers aren’t alone, either. Their ambassador is actress (and scientist IRL) Mayim Bialik. The woman we all knew as Blossom before she got a PhD in neuroscience and joined the cast of The Big Bang Theory has helped TI develop a program that teaches middle and high school students science, technology, engineering, and math (STEM). The program uses models of zombie outbreaks loaded onto TI graphing calculators, computers, or iPads to demonstrate everything from brain damage (natch) to the patterns in which disease spreads.