According to ‘Van Hiele level of Geometry’ students who can describe and sort out shapes on the basis of appearance are at:

Correct option is A

In the Van Hiele levels of geometric thought, level 0 - Visualization refers to the stage where students can recognize and describe shapes based on their appearance. At this level, students identify shapes by their overall look, but they do not yet understand the properties and relationships between shapes. For example, they may recognize a square or triangle based on how it looks but may not be able to describe why it is a square or triangle based on specific properties.
Hence, the correct answer is (a) level 0 - Visualization.
Information Booster:
1. Van Hiele levels of geometry describe how students understand geometric concepts, progressing from visual recognition to more abstract reasoning.
2. Level 0 - Visualization: Students recognize shapes by their appearance, focusing on how they look rather than their properties.
3. Level 1 - Analysis: Students begin to analyze shapes based on their properties, such as sides, angles, and symmetry, rather than just appearance.
4. Level 2 - Informal Deduction: Students understand relationships between properties of shapes and can reason about geometric concepts.
5. Level 3 - Formal Deduction: Students can use formal proofs and logical reasoning to establish geometric relationships.
6. Level 4 - Rigor: This is the most advanced level, where students understand the formal systems and axioms underlying geometric concepts.
Additional Information:
· The Van Hiele model helps teachers assess where students are in their geometric understanding and tailor instruction accordingly.
· Moving from one level to the next requires experience, teaching, and specific learning activities that challenge students to think about geometry in more sophisticated ways.