Physical Education 
Music 
Art 
Spanish
Library
Technology

www.ixl.com

www.abcya.com (Various language arts and math games to choose from.  Check out Money Bingo!)

www.funbrain.com   (Includes various games but the best ones for first graders are Stay Afloat, What's the Word, SpellCheck, Beach Ball Balance, Math Baseball, Guess the Number, Tic Tac Toe Squares, and Line Jumper.)

http://www.hbschool.com/activity/length_strength1_inches/  (measuring activity using a ruler)

www.starfall.com  (Contains many independent level online stories that children can read aloud to practice fluency.)

https://kids.nationalgeographic.com/

http://www.hbschool.com/activity/counting_money/  (counting money activity)
 

The Doubles Rap (1-5)
http://www.schooltube.com/video/63b1cf23e0bc199c7265/Doubles!%20Doubles!%20(I%20Can%20Add%20Doubles)%20song


Guess My Button (Attributes Game)
http://www.learner.org/teacherslab/math/patterns/buttons/
 

BrainPop and BrainPop Jr

Language Arts:
Chicktionary Coop
Balloony Word
iSort Words
Word Builder
Futaba
Build A Word Express
First Grade Learning Games - Language
Math:
Math BINGO for kids
Number Board
Math Puppy - Bingo Challenge
Math Bingo - ABCya.com
First Grade Learning Games - Math
IXL Math First Grade (tap "Continue as Guest")