You would have noticed that your little baby is playing more complex games that involve memory and intellect. Sorting, grouping, matching, pairing are some of the games that he enjoys a lot. He is now able to recognize an object by looking at the picture and even match it with an actual object.
What you need to know
For most children this age the mental processes are becoming stronger and they are able to form mental images of things. They have the intellectual ability to do mental trial and error without physically trying it out. So they can form a visual 3D image of an object when they look at a picture. This helps them to recognizes and match it to an actual object.