Which of the following is NOT a good method for a group brainstorm?

Shooting down ideas that aren't considered good ideas is not a good method for group brainstorming because it stifles creativity and discourages participants from sharing their thoughts freely. The essence of brainstorming is to create an open and inclusive environment where all ideas are welcomed and considered, regardless of their perceived quality at the moment.

In a successful brainstorming session, encouraging all ideas fosters an atmosphere of creativity, as individuals feel more comfortable sharing their thoughts without fear of criticism. Building on each other's thoughts is also vital, as it helps develop and refine ideas collaboratively, resulting in more innovative solutions. Additionally, using visual aids for inspiration can stimulate creativity and help participants visualize concepts, making the brainstorming process more engaging.

By focusing on the encouragement of ideas rather than dismissing them, the group can explore a wide range of possibilities, leading to more effective outcomes.