Prentice Hall Course 2 is not designed for use with primary school pupils.
Prentice Hall Course 2 has limited evidence of effectiveness in secondary schools. The one qualifying study of this intervention showed an effect size of +0.55.
About Prentice Hall Course 2
Prentice Hall Course 2 is a traditional US commercial textbook based on the US National Council of Teachers of Mathematics standards (NCTM standards). It is a curriculum aimed at students aged 12 and 13 which emphasises proportional reasoning and offers a balance between concepts and problem solving.