Before sorting shapes, help your baby learn "empty, full" and "in, out." Narrate as baby plays: "You're putting the red block in. It's round." Deliberately say the shape and the color, and whether it's going in or out. When all the blocks are out, say "empty." When they're all in, say "full."
When baby’s ready for shape sorting, put away all the shapes except the round ones. Let your child experiment with getting the circle in the correct opening. If it’s a struggle, point out the round opening and say, "Try this." Baby might get it, but if not, have the patience for trial and error.
Master of the round. Once round shapes are mastered, put those blocks away and say, "Now let's try the square ones." And when baby can sort that shape, try both together—this may be the same day, or the next day, or in a week or so. It all depends on when baby's ready.
Show me! Start by exploring all the features of a toy together—show your child how to press keys, flip pages, bat rollers. At this age, it's probably best to focus on action/reaction rather than moving into ABCs and 123s.
Words,words,words This is the time when babies are building their receptive language, so the more words they hear, the more words they become familiar with. Reinforce receptive language skills by saying the names of the colors, shapes and animals that you see. "Do you hear the horn?" "Let's make the puppy move." "What do you think the monkey says?"