Where are the resources that go along with the Challenge Vocabulary supplement in SIPPS, Fifth Edition?

The practice passages can be found on the Learning Portal. 

• If you use SIPPS, Fourth Edition and purchased the Challenge Vocabulary supplement, you will have access to the Vocabulary resources. This is a separate dropdown program to add. The passages are accessible there.
• If you purchased SIPPS, Fifth Edition, you will already have access to the Vocabulary resources and can access the practice passages there.