Basic counting and sorting exercises can be performed with this simple activity set which includes a tray with five bowls - four along the top and one larger one in the centre.  The set also includes forty coloured discs - ten each in red, yellow, blue and green - but the activity could be expanded to include any other suitable objects you might find in the classroom or at home.  The tray measures 25 cm x 19 cm (about 10" x 8").