Is it permissible to use terms such as "the general idea of the verses," "the ideas of the text," or "the basic ideas of the verse" when teaching the Holy Qur'an?

There is no harm in using phrases such as "the general idea of the verses" or "the ideas of the text," because Allah commanded reflection upon the Quran, and reflection produces ideas and contemplations on the verse, especially if the one reflecting possesses the tools of analysis and interpretation, or conveys that from a reputable exegete.