With gun suicides on the rise, a rare hotline staffed by St. Louis teens saves lives

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.

Colombia has attempted to decrease murder and homicide rates by setting up curfews for teenagers, forcing bars to close earlier in the evening, and creating gun laws to prevent the carrying of weapons. As a result of this epidemiological, data-driven approach, along with other governmental factors, the homicide rate has decreased significantly in most of the cities in which it was implemented.

Cities save money and help kids by connecting them with diploma programs. In Washington, iGrad is helping students do just this – and seeing results.

In Oakland, black males are almost as likely to be killed as they are to graduate high school. One school is giving them special classes with black mentors to better address their emotional needs and keep them in school.

Young black males in Oakland are suspended more frequently and graduate high school at a much lower rate than their peers. A charter school specifically designed for African American boys focuses on providing them with role models to create a supportive environment, combat the effects of trauma, and push them to succeed.

A group in New York called Friends of the Children identifies high risk kids in the city and mentors them for 12 years helping them become emotionally stable and capable adults.

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.

A program in Philadelphia is pioneering new ways to treat the urban wounded. By seeing it as PTSD, and not pointing fingers, the city is using mental health tools to decrease violence and heal communities.

AltSchools use a completely different education system - interconnecting technology and hands on experiments - to help students achieve a higher degree of learning. Students are grouped into small, personalized cohorts so they can be both mentors and mentees for their fellow peers, creating a collaborative learning space for all.