Final answer:
In a lab setting, if a glass beaker breaks, notifying the teacher and classmates is crucial to ensure proper clean-up procedures are followed.
Explanation:
Andreas accidentally breaks a glass beaker in a lab setting. In such a situation, the appropriate action for him to take would be to notify his teacher and classmates immediately. Proper glassware safety protocols generally involve communicating accidents promptly to ensure proper clean-up procedures are followed.
Learn more about Glassware safety in a laboratory setting here:
https://brainly.com/question/32180154
