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The Progression of Geometric Thinking

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  • 0:03 Geometric Thinking
  • 0:43 Visual
  • 1:34 Descriptive & Analytic
  • 2:23 Abstract
  • 3:21 Lesson Summary
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Lesson Transcript
Instructor: Natalie Boyd

Natalie is a teacher and holds an MA in English Education and is in progress on her PhD in psychology.

Students develop their understanding of geometry in specific stages. But what are those stages, and how can teachers help move students through them? In this lesson, we'll look at the progression of geometric thinking.

Geometric Thinking

Khadija is a geometry teacher. Not every student comes into her class understanding shapes and spatial relationships. Khadija believes that she can teach her students better if she understands the basic stages of geometric thinking. That is, she wants to know how her students might develop their thinking about shapes and space.

Geometric thinking is the way students understand geometry. Specifically, geometric thinking is the way that students understand the spatial relationships between and within objects. Every student goes through a certain progression as they develop geometric thinking.

To help Khadija out, let's look at the different basic stages of geometric thinking.

Visual

The first stage in geometric thinking is the visual stage, which involves noticing the way figures look. Students in this stage can recognize common shapes, like circles, squares, and triangles. They might also recognize a single component of a shape, such as the sides of a triangle or rectangle.

Most of Khadija's students have at least reached this stage when they come to her class. If she shows them a rectangle and a triangle, for example, they will be able to say which one is which. If she asks them to point to the sides of a triangle, they can do that, too.

But, what if Khadija's students were younger? What if they didn't know their shapes yet or weren't able to identify elements like sides or angles? Teachers can help students achieve success in the visual stage by incorporating activities in the classroom, such as working with blocks of varying shapes or labeling shapes with the correct term.

Descriptive & Analytic

The next stage in geometric thinking is the descriptive stage. This can sometimes be referred to as the analytic stage as well. This stages involves recognizing more than one component of a shape and recognizing basic concepts about the components.

An example of this might be what happens when Khadija shows her students an array of triangles. Those in this stage are able to recognize different components, like sides and angles, and their relationship to each other. They also might understand ideas such as the concept that all angles in a triangle do not have to be equivalent.

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