SI Resource Series

Points of departure with base ten blocks [realia] - Ontario, Canada : SI Manufacturing, [n.d.] - Points of departure .

1 base ten decimal mat (col. ; 36 x 26 cm.) + assorted base ten pieces (col.) ; in storage bin (14 liter.)

Subjects--Topical Terms:
Manipulatives (Education)
Mathematics -- Study and teaching (Elementary) -- Activity programs.