Final answer:
When scaffolding STEM learning, it is best to avoid basic and easy questions and yes-or-no questions. Instead, ask open-ended questions that encourage critical thinking and problem-solving skills.
Step-by-step explanation:
When scaffolding STEM learning, it is best to avoid questions that are basic and easy to answer, as well as questions that are yes-or-no questions. These types of questions do not encourage critical thinking and problem-solving skills, which are essential in STEM subjects. Instead, focus on asking open-ended questions that require students to apply their knowledge, analyze data, and think creatively.