"shape our discussion" is a correct and usable phrase in written English.
It means to influence or guide the direction or focus of a conversation or dialogue. Example: "The purpose of this meeting is to shape our discussion on the new project proposal. Let's hear everyone's thoughts on how we can make it successful."
Journalists, politicians and even the Occupy movement have shaped our discussion by analyzing — and often attacking — the bankers at the helm.
These red lines have guided and shaped our discussions with Israel and at present with our American interlocutors.
We also try to show in our proposals how the campaign is already taking shape in our discussion.
The Center for Digital Humanities (CDH) continued its Year of Data — a campus-wide initiative to encourage critical thinking around how data shape our lives — with a lively discussion at "Who Counts?
These are the focus of our discussion of what shapes cultural identity.
All of these things will be discussed in the financial perspectives for the coming period, and I am assuming that Mrs de Lange and also Mr van Dalen, who have spoken such fine words about biodiversity, will give shape to their words in our discussions on these financial perspectives.
The U.K.'s reply to this question will be important and even decisive, because it will shape the discussion on our future partnership and shape also the conditions for ratification of that partnership in many national parliaments and obviously in the European parliament".
Jim Wallis says, "The discussion that shapes our political future should be one about moral values".
We need more Tocquevilles and fewer Silvers (and Dick Morrises) framing our political discussion and shaping our decisions as a free people.
But I don't think there is enough discussion about how technology shapes our thinking.
