Il Mondo Additivo Fino a 20
Playing with Math 4 is based on 36 game-exercise cards. The formative path of this book is structured with these conceptual areas:

Pp. 4-10 Correspondence and numerical order from 0 to 19
Pp. 11-15 Line of numbers: addition and subtraction within 19
Pp. 16-24 operations of addition and subtraction between 0 and 19 with two addends and / or two subtrahends, based on the processes of complete / compare, merge / dis-join, de-compose, add-remove
Pp. 25-34 Expressions with an operation from 0 to 19 based on decompositions, numerical chains, machines and tessellations having more addends or subtrahends
Pp. 35-39 Operations of addition and subtraction between 0 and 19 based on a series of numerical chains

THIS BOOK IS IN ITALIAN
It is also available the ENGLISH VERSION

The Series' theoretical model and formative path are visible on this website: http://didattica.ispef.it/psicodidattica.htm