Logic Model

A logic model is a planning and evaluation tool that shows, in a simple diagram, how your program is supposed to work. It typically flows from left to right and includes five components: inputs (the resources you have), activities (what you do), outputs (the direct products of your activities), outcomes (the changes that result), and impact (the long-term difference you make). By laying these elements out visually, a logic model makes it easy to see whether your plan is logical and complete.

For example, if you are running an after-school coding program, your inputs might include volunteer instructors and donated laptops. Your activities would be weekly coding lessons. Your outputs might be the number of students who complete the course. Your short-term outcomes could be increased coding skills and confidence. Your long-term impact might be more students from underserved backgrounds pursuing technology careers.

For high school students, logic models are practical because they force clarity. When you can map out your entire program on a single page, gaps and assumptions become visible. You might realize you listed an outcome but have no activity that directly leads to it, or that you are planning activities without the necessary resources to carry them out. Many grant applications and program evaluations require a logic model, so learning to build one now prepares you for more advanced product building and entrepreneurship. It is also an excellent way to communicate your plan to teammates, mentors, and supporters.