Here are some links you might find useful:
Scratch Coding
Typing Pal
User name is first name 33 (eg. johnny31)
Password is rgs33
Math
Zearn Math
Class Code: CE9J6X
Reading
Readworks
Classcode: K7EKSZ
Password: 1234
Story Line
Time for Kids
Epic
Classcode: pbu8922
Lewis and Clark
http://www.lewis-clark.org
Lewis and Clark Song
Oregon Trail Game
Testing
State Testing Practice