key notes:
Vertices is the word for more than one vertex.
A vertex is where two sides meet.
learn with an example
Which shape has fewer vertices?

solution:

Next, count the vertices all around this shape.

5 is less than 6.
So, this shape has fewer vertices.

Which shape has fewer sides?

solution:
Count the sides of both shapes.
First, count the sides all around this shape.

Next, count the sides all around this shape.

3 is less than 6.
So, this shape has fewer sides.

let’s practice: