Blocks versus text: Ongoing lessons from bootstrap

Block languages need to be studied from many perspectives. One important viewpoint that we do not believe has been explored in the literature is the effect on teachers during professional development workshops. We have acquiring experience comparing the use of block languages against (parenthetical) textual ones in the process of training teachers for the Bootstrap curriculum. We believe our observations are not only interesting in context, but might also lead to discovering interesting new subtleties about the use of blocks.