Application is a tool, teacher is a user of given tool. Headline implies that tool is to penalize children, while in reality it is a decision of teacher. If that app would not exist, children were still penalized.
Shovel: Neutral-Good (farming), Uncontrolled (it’s very unlikely you can do much harm to society with a shovel)
Backhoe: Neutral/Good (efficiency), Controlled (heavy machinery can easily kill people and damage infrastructure)
Agent Orange: Bad (imprecise, damaging, disease-inducing), Controlled (considered a chemical weapon with no legitimate societal use)