The Discovering Surface Area Resource Pack is a great tool for introducing or reinforcing the concept of surface area of rectangular prisms. It is great for whole or small groups in addition to independent practice, homework or test prep.
This resource comes with the following pages:
2 surface area notes and review pages
1 guided practice page
3 independent practice pages including fractions and decimals
1 surface area assessment
1 page of extreme challenge surface area in context problems
For decimal review, you may also like my 78 page Comparing Decimals Resource Pack