Symmetry can be found in various forms, including reflectional and rotational symmetry, and plays a significant role in object recognition, alignment, and reconstruction. Recent research has ...

to build on students' knowledge of symmetry and develop students' reasoning with properties of symmetry to develop an understanding of viewing some symmetries as motions rather than as discrete or ...

to build on students' knowledge of line symmetry and develop students' reasoning with properties of symmetry to develop an understanding of reflectional symmetry (e.g., what you do on one side, you do ...

A 2D shape is symmetrical if a line can be drawn through it and either side is a reflection of the other. The line is called a line of symmetry. This is sometimes called a 'mirror line' or 'mirror ...