“draw a horizontal line of length 1, from the point at the bottom of the first line, toward the left ...”
step 3 :
“draw a diagonal line, from the left end point of the second line, through the top end point of the first line, and on toward the edge of the page ...”
step 4 :
“draw a horizontal line of length 2, from the left end point of the second line, over and through the right end point of the second line ...”
step 5 :
“draw a vertical line from the right end point of the last line drawn, up toward the edge of the page...”
step 6 :
“finally, measure the distance from the bottom end point of the last vertical line, up to the point where it crosses the diagonal line...”
question : “what is 3 × 4?”
answer :
step 1 :
“draw a vertical line of length 3...”
step 2 :
“draw a horizontal line of length 1, from the point at the bottom of the first line, toward the left ...”
step 3 :
“draw a diagonal line, from the left end point of the second line, through the top end point of the first line, and on toward the edge of the page ...”
step 4 :
“draw a horizontal line of length 4, from the left end point of the second line, over and through the right end point of the second line ...”
step 5 :
“draw a vertical line from the right end point of the last line drawn, up toward the edge of the page...”
step 6 :
“finally, measure the distance from the bottom end point of the last vertical line, up to the point where it crosses the diagonal line...”