For-profit companies are making good private schools available even to Africa’s poor. They can do it – and can do it on an enormous scale – by hiring neighborhood residents to teach, and scripting out every word of every lesson on an e-reader.

Blue Engine, which places recent college grads as full-time teaching assistants in New York City public schools, is helping poor students thrive in college. They focus on small teacher-student ratios, frequent feedback for teachers, and a concentration on 'gateway' courses associated with success in college.

About 40 percent more people in the state are seeking treatment for addiction today than a year ago - but the number of deaths from heroin is going up. Local government is scrambling for both funding and awareness to combat the issue.

Inner-city kids, generally, fare worst on measures of academic achievement like standardized tests. An intensive tutoring and mentoring program in Chicago has produced big improvements for young boys, pairing them two-on-one with math tutors that offer homework support and educational guidance.

In India, videos made about the many social problems are secretly broadcasted in different villages to make people aware of the real problem and also aware of what they can do to fix it. Video Volunteers, an organization that coordinates these video productions, catalyzes community change through transparency and accountability.

Crisis Text Line provides counseling services via text, a medium with which teens are sometimes more comfortable. The approach complements the work of counselors and collects data for research purposes.

Adolescent smoking remains a challenging health problem because of the allure of cigarette branding. Australia is piloting the transformation of cigarette packaging with a generic look that reduces the appeal of smoking. In Florida, the Truth campaign has exposed that cigarette companies targeted teenage consumers and, in response, created a set of new advertisements that presented the cigarette industry with transparency.

According to the Centers for Disease Control and Prevention, drug overdoses are the leading cause of injury-related mortality. Naxolone, a drug used to revive overdose victims, is only available by prescription. However, private organizations have distributed Naxolone kits nationally, showing that the drug can save lives when it is more readily accessible.

Huge numbers of students were getting suspension as punishment - until there was a nationwide push to rollback zero-tolerance policies instituted after the deadly Columbine High School shootings that emphasize harsh discipline for even minor misbehavior in favor of support-focused alternatives. The idea: Cultivate communication between teachers and students by gathering in weekly circles to discuss concerns and form one-on-one “harm circles” between students, parents and counselors when conflicts arise.

Well-trained teachers cannot be replaced solely by technology, as has been increasingly apparent at Carpe Diem schools, where students learn largely via computers enabled with educational software.