Here's a handy practice chart to help you stay organized when practicing your scales with a tempo goal in mind. You can check off or color in the boxes as you are able to play each scale at each tempo.
The tempo indications are for quarter-notes. I have my students play their scales with this rhythmic pattern:
They play their scales up and down, 2 octaves, tongued, followed by the arpeggio. Click on the link and you can download and print the chart.
Scale practice chart