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"Welcome to the ORC Stella website. The core of this collection is a library of more than 600 non-routine mathematics problems known as Stella's Stunners to be launched set by set over the coming months. The problems range from simple visual problems, requiring no specific mathematical background, to problems that use the content of Pre-Algebra, Algebra I, Geometry, Algebra II and Trigonometry, up through Pre-Calculus. The Stella problems are not typical textbook exercises. They are considered "non-routine" problems because the methods of attacking them are not immediately obvious. Because these problems can supplement and enliven traditional mathematics courses in a variety of ways, we have included materials to assist in using Stella problems in your teaching: "

"If you find yourself frustrated trying to keep up with the school packets, video chats, and virtual office hours, take a deep breath and a step back. Official school activities are important, but there are plenty of everyday activities that count as learning too. These kinds of activities have their limits (kids aren't going to learn calculus from cooking dinner), but overall, you can feel good about kids furthering their learning through these at-home activities."

"Satisfaction and engagement may not be the most common feelings among students studying introductory calculus. According to Jo Boaler, a professor of math education at Stanford, roughly 50 percent of the population feels anxious about math. That emotional discomfort often begins in elementary school, lingering over students' later encounters with algebra and geometry, and tainting the subject with apprehension-or outright loathing. Professor Mary Helen Immordino-Yang, associate professor of education, psychology, and neuroscience at the University of Southern California has explored how emotions are tied to learning. "Emotions are a piece of thinking," she told me; "we think of anything because our emotions push us that way." Even subjects widely considered to be outside the realm of emotion, like math, evoke powerful feelings among those studying it, which can then propel or thwart further learning."

"S.O.S. MATHematics is your free resource for math review material from Algebra to Differential Equations!"