Determine which items are wide and which ones are narrow. 

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Look at the shapes below. What shapes are on the left? Cylinder, cube, triangle, trapezoid. And which ones are on the right? The same figures: a cylinder, a toy block, a triangle, and a trapezoid. Are they similar? Not really. They have the same color and shape. How do the figures on the left differ from those on the right? They have different sizes.

Do they have the same height? Let’s check it out.  

Yes, the height of the shapes on the right is the same as on the left. What is the difference? The objects on the right are thin. They have a short distance from the right side to the left side. We can say they are narrow. The shapes on the left have a large extent from the right side to the left. Let's call these objects wide.

We use the words wide and narrow to describe the size. The edges of narrow objects are close to each other. Wide objects have a large distance from side to side.  

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