A conversation

M-"Henry look at those beads. How many are there?"

H-"Two"

M-"Good job! Let's count them. Ready?"

H-He points "One and" points to the other "one."

M-"One and one? But you forgot two."

H-He points again "Two and two."

M-"What? Now you forgot one."

H-He points yet again "Two and one."

M-"Close but this time you went backwards."

H-"Beep beep beep..."