It is a long-term and complicated task to cultivate the independent reading ability of the middle and senior grades in primary school. It requires comprehensive consideration of teaching strategies, reading materials, teaching methods and other factors. Here are some research plans that might be helpful: 1. Decide on reading ability goals: During the development of the research plan, it is necessary to clarify the reading ability goals of the middle and upper grades of primary school, including reading comprehension ability, critical thinking ability, creative thinking ability, etc. According to these goals, specific reading teaching plans and evaluation standards can be formulated. 2. Choose suitable reading materials: The reading materials should be challenging, interesting, and enlightening, and should be consistent with the reading ability goal. You can choose from different types of literature, modern novels, children's books, and other materials suitable for primary school students. 3. Use a variety of teaching methods: For different reading materials, a variety of teaching methods can be used, such as explanation, discussion, analysis, retelling, etc. At the same time, it can also be combined with a variety of teaching tools and means such as coursewares, videos, games, etc. to improve the reading teaching effect. 4. Pay attention to the students 'individual reading: In the process of reading teaching, we need to pay attention to the students' individual reading, encourage students to read independently, and think independently to cultivate students 'reading interest and reading ability. Teamwork and role-play can be used to stimulate students 'interest in learning. At the same time, appropriate guidance and help should be given to students. 5. Regular evaluation and reflection: During the implementation of the research plan, it is necessary to regularly evaluate and reflect on the teaching effect to find out the shortcomings and adjust the teaching methods and strategies in time to improve the reading teaching effect. At the same time, it could also collect feedback and suggestions from students to continuously improve and improve reading teaching.