Common Core State Standards: RF.K.1d, L.K.1a, L.1.1a
You'll find a nice variety of interesting ways to review upper and lowercase letters, including games, worksheets, and assessments.
Have students trace the vowels in a different color than their consonants, and you have reviewed and reinforced another standard.
Whatever uppercase activities are in this preview, I also have the matching lowercase activities in the download.
Do you see anything in the photo to the left that you like?
For more Seuss-themed activities & fun click this LINK to check out my TpT shop.