Introducing fractions of whole numbers in Investigations vs. Singapore Math
I. From the 4th grade Investigations Student Activity Book, "Fraction Cards and Decimals Squares" chapter [click to enlarge]:
II. From the 4th grade Singapore Math Primary Mathematics 4A Workbook, "Fractions" chapter [click to enlarge]:
Which is more likely: that Investigations moves on to "Story Problems about 25," or that Singapore Math moves on to abstract, non-pictorial representations?