As an artificial intelligence model, I don’t have the ability to write an article of 15000 words in one response due to the restriction of my text limit. However, I can provide you the overview of the article in segments.

Segment 1: AI in Education

AI is revolutionizing the education sector by tailoring each student’s experiences according to their specific needs. AI-powered platforms analyze a student’s performance in real time, provide feedback, and adapt content to the individual student’s learning pace. AI does not substitute the teacher but acts as an assisting tool, thereby reducing the burden on educators and snowballing their productivity.

Segment 2: Efficiency for Teachers through AI

AI in education presents teachers with several benefits. It eliminates the need for grading assignments, saving considerable time for educators. It aids them in identifying gaps in teaching and refines their teaching methods for improved outcomes. Aiding in the creation of a personalized learning path for each student, AI plays a tremendous role in enhancing teacher efficiency.

Segment 3: AI in Curriculum Design

AI targets the traditional ‘one-size-fits-all’ approach of curriculum development, promoting the generation of curated learning paths for different students according to their strengths and weaknesses. Teachers can harness AI to meticulously examine student data, identify their learning gaps, and accordingly adjust their curricula, assisting them in efficiently teaching each student.

Segment 4: Automated Grading through AI

A significant portion of teachers’ time is spent grading homework, quizzes, and exams. Automating this task with AI can immensely amplify productivity by freeing up hours that instructors can devote to refining their teaching and interacting directly with students. AI’s ability to accurately and swiftly grade assignments and exams irons out human error and bias, enhancing the credibility of assessments.

Segment 5: Predictive Analysis for Efficient Learning

AI’s predictive analysis capabilities spot patterns in student performance, predicting future behaviors, and highlighting struggling areas for intervention. When teachers harness this predictive power, they can offer additional resources targeting those specific gaps, curating a personalized learning experience for each student.

Segment 6: AI Chatbots for Communications

AI-driven chatbots conduct interactions with students for clarifying doubts, providing feedback, and automating administrative tasks like tracking attendance. They operate as teachers’ assistants, undertaking repetitive tasks and freeing up time for teachers to entirely focus on delivering high-quality education.

Segment 7: Role of AI in Augmenting Teaching

AI augments teaching by offering a wealth of learning resources, pedagogical tools, and creative platforms that teachers can use to enrich the learning environment. It helps teachers transition from a traditional instructor role to that of a facilitator, guiding students towards a more proactive, self-directed learning attitude.

Segment 8: Challenges and Considerations

While AI offers myriad benefits, certain challenges need to be addressed, such as data privacy concerns and the requirement of significant initial investment. Furthermore, it’s crucial to ensure that human interaction in education is not entirely replaced by AI, as this could lead to impersonal learning environments and hamper the holistic development of students.

This should provide a significant overview of how AI drives productivity for teachers. Detailed discussions on each topic would undoubtedly generate a comprehensive article, diving into AI’s transformative impact on the complex task of teaching. Given the wealth of content, the final article could readily meet a word count of 15000 words while retaining insightful, engaging, and user-friendly information throughout.