Understanding the Situation:
As a mother, you are concerned about your son Shantanuraj's learning progress. His sister, who is also using this app for studying, has offered to help teach him, but he is not responding positively to her efforts.

Reasons for Lack of Response:
- Shantanuraj may be feeling demotivated or lacking interest in studying.
- The dynamic between siblings can sometimes make it challenging for one to accept help from the other.
- He might not be comfortable learning from his sister and prefer a different approach.

Strategies to Encourage Learning:
- Encourage open communication with Shantanuraj to understand his perspective and any challenges he may be facing.
- Create a positive and supportive learning environment at home to motivate him.
- Consider seeking help from a professional tutor or educator who can provide personalized attention and support.
- Utilize interactive learning tools and resources available on this app to make studying more engaging for him.

Encouraging Collaboration Between Siblings:
- Emphasize the importance of teamwork and cooperation between siblings in achieving academic success.
- Encourage Shantanuraj to be open to his sister's help and guidance, highlighting the benefits of learning from each other.
- Set regular study sessions where both siblings can work together, share knowledge, and support each other in their academic pursuits.

Conclusion:
By understanding the root cause of Shantanuraj's lack of response and implementing strategies to encourage his learning, you can help him overcome any obstacles and make progress in his studies. Collaboration between siblings can be a valuable learning experience that fosters a supportive and nurturing educational environment at home.