For primary school students, there are still many difficulties in realizing autonomous learning, but autonomous, cooperative and inquiry-based learning are the general requirements of the new curriculum standards for students' learning methods and the needs of cultivating talents in the new era, so it is very important to cultivate students' autonomous learning ability from an early age. Using the storage and playback function of interactive electronic whiteboard can effectively help students to check and fill gaps in time, review and consolidate, so as to cultivate students to study effectively without the guidance and supervision of teachers.

In addition, primary school students' thinking is divergent and active, and many conclusions can often be drawn by observing and analyzing the unfolding problems from different angles. The unique generation characteristics of interactive electronic whiteboard provide good technical support for cultivating students' creative thinking. Therefore, giving play to the special function of interactive electronic whiteboard and combining it with the divergence of primary school mathematics will help students think from different angles, seek solutions, break through the habitual rigid thinking mode and cultivate innovative talents that meet the development needs of the digital information age.

2. Diversified teaching methods to give full play to students' creative ability.

The choice of teaching methods should vary from person to person and from content to content. Teachers should be good at asking questions from different angles, guiding students to think and enriching students' cognition, so as to facilitate the extensive transfer of learning. Let students reflect on their own learning process and achievements, make self-evaluation, from which students will have a strong thirst for knowledge in learning motivation, give play to their creative ability, experience the happiness brought by learning itself, and then let students learn independently and improve their quality in an all-round way.

3. Improve the time of knowledge structure and create opportunities for autonomous learning.

In terms of teaching time, we should combine in-class learning with out-of-class learning, so that in-class time can be a time for sharing and communication, teacher-student interaction, student-student interaction and improving knowledge structure, and out-of-class time can be a time for swimming in the online world, collecting and sorting out information, learning independently and initially building knowledge. In practice teaching, we should create various opportunities for students to learn independently, and encourage students to learn independently on the premise of fully respecting their independence.

Through the practice of whiteboard teaching, I deeply realized that the whiteboard teaching scene is very interactive, and both the presentation of new knowledge and the design of exercises reflect the active operation of teachers and students.