If You Hopped Like a Frog
Schwartz, David M.
If You Hopped Like a Frog - New York Scholastic Press 1999 - 30 p. col. ill.
Introduces the concept of ratio by comparing what humans would be able to do if they had bodies like different animals.
0-590-09857-8
If You Hopped Like a Frog - New York Scholastic Press 1999 - 30 p. col. ill.
Introduces the concept of ratio by comparing what humans would be able to do if they had bodies like different animals.
0-590-09857-8