Nursery 
A nursery in a dream is an incubator for new ideas. To care for a nursery that is out of control in a dream indicates that you are feeling overwhelmed with creative power.
Alternatively, a dream about a nursery might represent your curiosity about motherhood. The nursery is also a place where you might be drawn to find your inner child. You may have unfulfilled desires coming from the child within you.
Duckling
Seeing a duckling within a dream represents a return to your roots. Be careful not to get caught up in your past and forget to live in the present. If the duckling is swimming, it represents your forward movement away from the negative memory from your childhood.
Orphanage
An orphanage in dream indicates a home for abandoned feelings. Past memories may be causing you underlying stress, in particular memories from your childhood. You may need to give extra attention to the needs of your inner child. You may be feeling alone or uncared for in your waking life.
Barbie Doll
Dreaming of a Barbie doll may be a sign that you are holding a superficial view in a personal situation that may thwart any true and satisfying progress. To dream of broken or dismembered Barbie dolls shows that you are led by your unconscious back into your childhood to where emotional maturity was stunted. There is a message here to meditate on the Barbie doll and what that means to you personally.
Kindergarten
To dream of going back to kindergarten indicates a need to reconnect with your inner child.
To dream of being afraid in kindergarten indicates that your inner child may need to be comforted and supported. Memories from your past which have made you feel shy or insecure may be causing you trouble in the present.