Over the last year, Expii has given over 200,000 learners access to personalized math and science education that speaks to them as individuals. We asked a few to tell us exactly why Expii works for them and why they keep using it.

"If there is only one way to learn something, it's 50/50; Pass or fail. But if there are more ways to do it, there are more ways to get it." - Luis, High School Student, Pittsburgh Public Schools, Pittsburgh, PA

“I've been using Expii ever since the first few years of its release, and it's been a constant source of engaging content throughout the fields of the sciences and mathematics, as well as a community of enthusiastic and driven students. Expii engages me and encourages me to explore topics I would never have otherwise encountered. As a past editor for Wikipedia, I also love contributing knowledge and content and helping other students gain the same degree of excitement for learning that I've been able to gain through my participation in Expii.” - Sharon, High School Student, Stuyvesant High School, New York, NY 

“As a student yearning to explore math more deeply than the rote memorization encouraged by several of my classes, I'm always excited to participate in new learning systems for math.” - Titus, High School Student, Coronado High School, Colorado Springs, CO

"I first joined this site back before Expii Solve was released. Back then, I had always felt a bit disappointed in myself for not being able to contribute to the topic map due to a worry of not being knowledgeable enough. I finally convinced my school to hold the AMC 12 in 11th grade, whereupon I had performed about average. During my preparation, I did mostly past problems. Because I'm a low-income student, buying books, like those from the Art of Problem Solving, was not entirely feasible for me, and my local libraries did not have them either. Costs for participating in interesting events or preparing for standardized testing has always been a problem for me in my situation. Math and science are my favorite subjects, and they will become more important as the world becomes more technologically advanced. Nevertheless, I don't see as many useful resources as I would hope. I'm excited for the future as I see more knowledge becoming free due to the Internet with its online courses and its open textbooks." - Yuchen, High School Student, South Fayette High School, McDonald, Pennsylvania

“I see it as a great way to contribute back to a revolutionary community of learners and doers. The goal of Expii lines up with my own life motto of helping others learn and succeed in order to build a better tomorrow. Expii is the vehicle to bring learning everywhere.” - Jerry, High School Student, Marquette High School, Chesterfield, Missouri

“I am passionate about mathematics. But there doesn't exist much opportunity in our country to spread the beauty of math & science. Expii is a platform for the students who are passionate about math & science but don't get the proper chances to learn math & science. We know, present world hugely depends on the theories of math & science. But the developing countries are not so much advanced in these sectors. As a result they lag behind. We know, students are the future leaders of a nation. I think Expii will be effective for our students in learning math & science.” - Rabiah, High School Student, Govt. Model Girls' High School, Brahmanbaria, Bangladesh

“I have always been very passionate about improving education through technology. I thoroughly believe that every student should have taken a chance in science, mathematics, and/or technology - but the current American education has not presented these topics in an attractive or interesting way to most students. Strong online educational platforms really have the potential to impact students positively. Over the past 2 years, I have used Expii frequently, for multiple purposes. I have used Expii to further my education in advanced mathematics topics, such as infinite descent. I have published 155 revisions on Expii, which consists of concept explanations, exercises, and solutions; I’ve also been an active member of girls@expii since its founding.” - Catherine, High School Student, Stanford Online High School, San Jose, CA