The Mathematics Assessment Project has several wonderful formative assessment lessons and shorter assessment tasks. The website also has numerous summative assessment forms for both middle school and high school students. Click here to access one such assessment with several high quality extended response questions on pages six and seven of the document. This series of connected extended written response questions would make a perfect addition to any assessment; especially if students have completed the transformations formative assessment lesson and task prior to the test.
For further assessment tasks including summative assessment forms, tasks and formative assessment lessons click here to access the Mathematics Assessment Project.