Answer:
Flowchart.
Step-by-step explanation:
A flowchart can be defined as a graphical representation (graphic organizer) of an algorithm for a process or workflow.
Basically, a flowchart makes use of standard symbols such as arrows, rectangle, diamond and an oval to graphically represent the procedures (steps) associated with a system, process or workflow sequentially i.e from the beginning (start) to the end (finish).
In this scenario, your teacher asked you to present your proposal for your investigative project (IP) and the procedure of your IP. Thus, the graphic organizer you should use is a flowchart because comprises of the procedures for a project or program.