Books similar to the following can be used with the lessons in the fourth grade kit.
Algebra Lessons
The Grapes of Math by Greg Tang
I Spy Two Eyes: Numbers in Art by Lucy Micklethwait
1, 2, 3 To the Zoo: A Counting Book by Eric Carle
Anno’s Mysterious Multiplying Jar by Masaichiro Anno
A Grain of Rice by Helena Clare Pittman
Data Analysis Lessons
Oh, Yuck: The Encyclopedia of Everything Nasty by Joy Mashoff
The Moon Book by Gail Gibbons
Great Moments in Baseball History by Matt Christopher
Is the Blue Whale the Biggest Thing There Is?
What’s Smaller Than a Pygmy Shrew? by Robert E. Wells