In this session the children think of symmetrical shapes they have observed in objects - such as buildings - and then recreate these together in groups. 1: Warm up: Moving parts of the body in ...

In general usage, symmetry most often refers to mirror or reflective symmetry; that is, a line (in 2-D) or plane (in 3-D) can be drawn through an object such that the two halves are mirror images of ...

We've looked at reversal patterns (head and shoulders pattern and inverse head and shoulders pattern). In this lesson, we cover continuation patterns, specifically the symmetrical triangle pattern.

A NARROW beam of X-rays, passing through the same point of a thin plate of a crystal, and moving in such a way that it successively occupies all the possible positions within a definite solid angle, ...