Based on your needs, I would recommend using Curipod. This tool allows you to upload your existing PowerPoint slides and make them interactive. One of its key features is the ability to easily share your slides with a simple code or link. This feature could be particularly useful for you as it allows other teachers to copy your slides by simply using the shared link or code.
Moreover, Curipod also allows for editing of the shared slides, which means that the teachers who copy your slides can modify them to suit their specific needs. This feature could be beneficial if you want to share your slides with colleagues who might want to adapt your content to their own teaching style or curriculum.
In addition, Curipod offers a range of interactive features such as polls, drawings, and questions that can be added to your slides for in-class interactions. These features could be useful if you want to make your PowerPoint slides more engaging and interactive for your students.
I hope this helps! If you have any other questions or need further assistance, feel free to ask.