When Adeline has a toy or activity that she does not feel comfortable with she will start to throw it. If we try to lace beads or build blocks "up" Adeline throws them. I bought these two toys for her for Christmas and I know they are a little challenging. The last thing I wanted was Adeline to sit with the toy and just throw each piece to the ground so I simplified, and you know what, we have had no throwing and she is enjoying them.
I put the other pieces away and later I will add to each activity.