Final answer:
The most effective way for a teacher to help a child remember to say "Please" is by reminding the child consistently and using positive reinforcement to encourage this polite behavior. The correct option is Next time, remind the child to say it.
Step-by-step explanation:
To help the child remember to say "Please" before asking to use a toy, the best way a teacher can assist is by setting a positive example and gently reminding the child to use the word whenever the situation occurs. This could involve directly reminding the child or asking the child to use the polite term. It is crucial to be patient and consistent while encouraging the child.
Encouraging good manners through repetition and reinforcement helps children develop social skills essential for their personal growth. It is important to employ strategies that make the desired behavior memorable, such as involving the child in role-playing exercises where they practice polite requests or utilizing games and positive reinforcement when they remember to say "Please" on their own. Teachers can offer specific praise when the child exhibits the desired behavior to reinforce its importance.