Below are one picture of a worksheet from Pearson Envision Math 2.0 for grade 4 Texas edition and one from Pearson Envision Math 2.0 for grade 4 Common Core edition. Mr. David Bradley would like to place the blame for the problems our children are having on district's adopting Common Core curriculum. My district adopted the TEXAS version, at least they thought. Take a look at this Mr. Bradley. I don't think my district is to blame!