What is advertising planning and creative copywriting?

Sweating! Planning, creativity, and copywriting are three different words. How can they be connected together and still give homework? Your teacher is a bit funny.

The poster design you are referring to is probably "poster design", which can be designed using PHOTOSHOP or coreldraw software. As for how to operate, please refer to Baidu tutorials.

The advertisement you are referring to may be the title and text of this poster. This needs to be based on your proposition and creative content.

If you have no idea at all, just copy it. Search for any key words such as "advertising door", "top copywriting", "China CI Forum", "creative poster", etc., and there will be plenty available for plagiarism.