场记板

例句：

1. 1. The teacher used the blackboard to explain the math problem.
   老师用黑板来解释数学问题。
2. 2. The student wrote down the answers on the blackboard.
   学生在黑板上写下了答案。
3. 3. The students gathered around the blackboard for a group discussion.
   学生们围在黑板前进行小组讨论。