Still photographs of classroom blackboard notations made by teachers during the facilitation of mathematics activities.

Still photographs of the classroom blackboard used during classroom activities shows the working process of teachers as they facilitated specific mathematics activities as part of the associated project "The Role Of Subject-Matter Knowledge In Teaching Science And Mathematics."

课堂活动中使用的教室黑板静止照片，展示了教师在进行特定数学活动时作为相关项目“学科知识在科学和数学教学中的作用”的一部分所执行的教学过程。