Hello, Glynis and welcome.
Thank you very much for your patience, due to your question not being answered earlier. Different experts are online at various times, and I recently logged in and read your question.
I definitely think you (and his parents) have a reason to be concerned and need to follow up with this, more in depth. Ask if the school has any cameras in the classrooms, corridors, and/or outside in the playground, etc., and what measures are being taken to watch your grandson and the other children, regarding this behavior. I don't doubt that something is going on, after reading your description of what your grandson has said and demonstrated with his teddy bears. He didn't make this up--he's too young; it has to have come from a real life experience.
I'm glad that you mentioned this situation began after the loss of his other nana (my condolences), because the grief he experienced could have been transferred into this kind of behavior.
It might be a good idea to arrange for him to speak with a school psychologist (if they have one) or a private child psychologist who will know the right questions to ask and get more information leading to the main cause of this behavior and then it can be resolved.
I hope all goes well with your grandson.
Please be so kind as to rate my answer with positive feedback; that is the only way I receive credit for my assistance. Thank you very much!Providing a positive rating will not end our conversation, should you need me for any follow-up. Simply click 'Reply' for clarification or additional information, if needed, and I will be glad to continue.Warmest regards,Cher
Hi again, Glynis and thanks for your reply.
I understand, completely and you are more than welcome to continue to wait for an answer from a child psychologist.
I feel I am qualified to answer your question because I have 4 decades of experience as a teacher (we do receive training in child psychology, as well), and I am a parent, myself.
If you wish to wait for an answer from a child psychologist, that's fine.
My primary focus is always on the good health and psychological well-being of your grandson.
please disregard; sent in error.