Your baby’s first leap!

Leap 1

From week 4, your baby enters leap 1, the world of sensations. The first signals of your baby’s first leap will appear between weeks 4 to 6 after the due date. Learn everything about leap 1 in The Wonder Weeks app. After this leap, baby’s senses will undergo a sudden, rapid growth. Your baby will notice that something new and strange is happening in their world and they could get upset. After taking leap 1, your baby will be open for new experiences and you will notice that he or she is more sensitive.

The fussy phase of leap 1

The fussy phase of leap 1

You could start to notice the first signals of leap 1 from week 4, when your baby cries more, is clingier and crankier than usual. This fussy phase could last anywhere from one day to the entire week. You have the greatest chance of seeing the signals of leap 1 in your baby around week 5. The fussy phase can be difficult for you as a parent as well. Mark down the start of the fussy phase in your calendar and you will always be prepared. If you have our app, you can automatically put these notifications in your calendar and the leaps will never catch you off guard again.

The skills phase of leap 1

The skills phase of leap 1

Although this new world, in which everything has suddenly changed, is extremely unsettling for your baby, around week 6 he will have become used to the new sensations that go with this leap. Your baby is clearly more interested in the world around him or her and can see slightly better at distances past 8 to 10 inches (20-25 cm) now. You will notices that your baby suddenly responds to you and others more. Also, your baby can produce a tear for the first time!

New skills after leap 1

Discover a new world

In the skills phase of leap 1, you can discover the new world together by stimulating the developed senses. For example, walk around with your baby looking for colorful things with lots of contrast. Stripes, corners, and faces attract their attention. Did you know that our app contains many games and you can use to stimulate your baby’s skills during the first leap? And the best thing about this leap is that your baby could show their very first smile now!

Learn everything about leap 1 in The Wonder Weeks app.

Leap 1: a key to your baby’s personality

Remember: your baby is unique! Some babies will mainly show their motor skills during the first leap and others the speech and language skills. Every baby develops in his or her own way and decides for themselves what he or she wants to develop. And the best bit is that it says something about your baby’s (future) personality! Did you know that not only can you tick off the skills of the leap in our app, but you can also keep track of them in your personal diary?

Baby leap chart

During our research into mental leaps, we discovered that this phase in which your baby cries more frequently and shows a different behavior than normally, can actually be predicted quite accurately almost up to the very week based on the due date. Discover the leaps of your baby on our website, using our baby leap chart.

More about leaps
Leap 1
From week 4, your baby enters leap 1, the world of sensations. The first signals of your baby’s first leap will appear between weeks 4 to 6 after the due date.
More about leap 1
Leap 2
From week 7, your baby enters leap 2: the world of patterns. Your baby could show the first signals of leap 2 between week 7 to week 10 after the due date.
More about leap 2
Leap 3
Around 11 weeks, you may see signs of the next leap approaching: leap 3, the world of smooth transitions. Your baby is acquiring yet another new skill!
More about leap 3
Leap 4
From week 14, leap 4 starts! The first signals of leap 4 will appear between weeks 14 to 20 after the due date. During leap 3, your baby learned to see several smooth transitions, patterns, or sensations without seeing any connection.
More about leap 4
Leap 5
From 22 weeks, your baby enters the world of relationships. Welcome to leap 5! Leap 5 is no small leap. This is a giant leap! Why? This leap enables your baby to perceive the relationships between all the earlier leaps.
More about leap 5
Leap 6
From week 33, the world of categories will be knocking at your door, leap 6. The first signals of leap 6 will appear during weeks 33 to 38. Once your baby can perceive “categories”, they will realize that they can divide the world into groups.
More about leap 6
Leap 7
Around 41 weeks, the world of sequences is just around the corner. Welcome to leap 7! Between 41 and 47 leap 7 will start. While your baby mainly studied things by taking or tearing them apart during the previous leap, they will now be rather “constructive” after this leap.
More about leap 7
Leap 8
Hip, hip, hooray! During this leap, your baby will celebrate its first birthday. Your baby will not only make a leap in their mental development but will also turn form a baby into a toddler!
More about leap 8
Leap 9
Around 59 weeks, you may see signs of the next leap: leap 9. Welcome to the world of principles. If your toddler has taken the leap, you will notice that they are running all kinds of “programs” more smoothly, more naturally and more clearly.
More about leap 9
Leap 10
Around 70 weeks, your toddler is ready for a new leap into the world of systems: leap 10. The last leap, at least the last one we have recorded. In leap 10, you can now observe your toddler becoming aware of systems after making this leap!
More about leap 10