Visual difference set 1

 Self-checking game for practising combining numbers with quantities (4 to 10) and the concept of part-whole. Place 2 plastic strips in the frame and arrange the cards alongside them in the correct way. Turn the frame to check whether you have done it correctly. If you have done it right you will see a nice picture. 

2 sets with different kind of cards

* wooden box with hinged lid (inside dimensions 275 x 118 x 30 mm)
* wooden frame (262 x 90 x 68 mm)
* 4 x 16 plastic cards (5 x 5 cm) and 4 x 2 plastic strips (20 x 5 cm)