Below are some links to fun and safe educational sites for students:
Prodigy (Math)
eSpark Learning (Reading & Math)
Spelling City (Spelling/Vocabulary)
TimesTables (multiplication games)
Multiplication.com (multiplication games)
Epic! (Reading)
Highlights Kids (Games)
Read Theory (Reading)
Into the Book (Reading)
Between the Lions (Reading Fluency)
Storyline Online (Reading)
Reading Bear (Phonics/Reading)
Freerice (Vocabulary) Free rice gets donated to 3rd world countries each time you play!
Inkless Tales (Reading)
Biblionasium (Reading)