http://progressiveearlychildhoodeducation.blogspot.com/2010/06/we-play-blocks-and-props.html
As with all areas of development, children go through stages using blocks. Understanding the stages will help you to provide the perfect props to appeal to the children in your world.
Carrying Blocks
Watch a toddler in the block area and you will see them carrying blocks around, piling them, collecting them and putting them in and out of containers. To facilitate this play, try adding: