Canada's largest school district ended its police program. Now Toronto may be an example for U.S. districts considering the same.

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.

In the past, Los Angeles was a dangerous city fraught with gang wars. Lately, though, LA has become a safer city due to six changes enforced by the police cracking down on public violence and gangs.

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.

With pressures of depression, anxiety, and suicide on the rise, teenagers in the United States are challenged to find the comfortable outlet and accessibility for emotional support. The Crisis Text Line offers a counseling service through mobile texting, which reduces the shame that can occur when approaching an in-person counselor, and expands access to professional mental health counseling nationwide.

For first-time youth criminal offenders, the traditional American jury falls short in encouraging behavioral change and may even set the juvenile on a course for repeated crimes. Washington, DC’s Youth Court is a jury that tries juveniles for minor non-violent offenses and offers peer pressure to prompt positive behavioral change. The DC Youth Court is one of many in the United States that reduces crime and future court costs.

Child-mentoring programs around the United States have helped at-risk youth during crucial years of development. However, New York City's Friends of the Children has improved the model by placing at-risk youth with adult mentors for 12 years. The forged relationships between mentor and developing child have greatly reduced the probability of teenage pregnancy, incarceration, and school drop-outs, and is cost saving.

Crimes against LGBT citizens have gone underreported in many U.S. cities. Washington DC’s Gay and Lesbian Liason Unit has employed and trained LGBT officers to represent community members that they protect and serve. After the establishment of the GLLU, the number of reported crimes has increased, demonstrating the comfort and trust that the community has with law enforcement.

In Clayton County, Georgia, the Second Chance Court is using a different tactic to give offenders the opportunity to move forward. The program, started in 2010, allows selected teens to attend counseling and classes – often with their parents – centered around self improvement and appropriate behavior. Collaborating with a community organization, the Second Chance Court has been able to reduce recidivism in youth.

Delaware has been working to make sure that all college-ready graduates, regardless of socioeconomic status, make it to college. With financial reasons standing in the way of many qualified students, the state has worked on multiple levels to make this a possibility.