For many website options, use the Dunn homepage: Go to the Dunn website, click on Students in the upper right-hand corner, then you will see a whole bunch of icons for Commonly Used Applications. When in doubt, use Clever as a common launching log-in for many sites using your child's PSD credentials.
IXL (FREE-Paid by Dunn for all second graders--use Clever to sign-in--has a ton of Math, Language Arts, Science, Social Studies and Spanish content)
Typing Club (FREE-paid for by Dunn--use Clever to sign-in--helpful games to encourage correct typing habits)
Epic! (FREE-Mon-Fri 7am-3pm-Use class code YLM2408) If you want unlimited access, there is a fee.