Erect means build or upright. If you erect a house, you build it. If you stand erect, you hold your body as tall as possible.
A mathematical model is a description of a system using mathematical concepts and language.The process of building a mathematical model is termed mathematical modeling.Mathematical models are used in the natural sciences (such as physics, biology, earth science, meteorology) and engineering disciplines (e.g. computer science, artificial intelligence). mathematical model is a description of a system using mathematical concepts and language.
Modeling is an instructional strategy in which the teacher demonstrates a new concept or approach to learning and students learn by observing. Research has shown that modeling is an effective instructional strategy in that it allows students to observe the teacherâs thought processes.