Octagon, Pentagon, Hexagon: Exploring Three Popular Polygons

Polygons are the building blocks of geometry, and three of the most common shapes that appear in classrooms, games, and everyday life are the octagon, pentagon, and hexagon. Understanding their sides, corners, and symmetry helps children develop spatial reasoning and prepares them for more advanced math concepts. This article breaks down each shape, offers easy drawing tips, and highlights fun resources such as catchy songs and animated videos that make learning engaging.

What Is a Pentagon?

A pentagon is a five‑sided polygon. In a regular pentagon, all five sides are equal in length and all five interior angles measure 108°. The shape is often introduced to young learners with the phrase “five sides, five corners,” a line that appears in many children’s learning songs.

In the video “Toddler Learning video Shapes! Join the Shape Squad Adventure,” a friendly animated character guides kids through a sing‑along that reinforces the concept of “five sides and five corners.” This method of pairing music with visual cues helps children retain the information longer.

What Is a Hexagon?

A hexagon has six sides and six corners. A regular hexagon’s sides are all the same length, and each interior angle measures 120°. Hexagons appear naturally in honeycombs, snowflakes, and many tiling patterns, making them a favorite example in geometry lessons.

When children watch “SHAPE SONG 3,” they hear a rhythmic chant that repeats “six sides, six corners” while colorful hexagons spin on the screen. The repetition of the phrase supports auditory learners and encourages participation.

What Is an Octagon?

An octagon features eight sides and eight corners. The most recognizable octagon is the stop sign, which is a regular octagon with each interior angle measuring 135°. Understanding the octagon helps children recognize traffic symbols and develop safety awareness.

In the animated series starring Harper, the character invites viewers to “embark on a shapes‑filled journey.” During the episode, Harper draws an octagon step by step, reinforcing the method of connecting