I am now a math teacher in Grade Three. The result of finding the shadow area of this question is 6 square centimeters, and the answer is wrong (the answer is wrong, which is often the case). The solution to this problem is to find the area of two large squares and then subtract the area of the blank part. Because the blank parts of two large squares overlap, two small squares or blank parts have to be subtracted, so the result is correct. The formula is as follows:

The area of two big squares: 2*2=4 (square centimeter) 4*2=8 (square centimeter).

The area of two small squares: 1* 1= 1 (square centimeter) 1*2=2 (square centimeter).

Shadow area: 8-2=6 (square centimeter)

A: The shaded area in this drawing is 6 (square centimeter).

I hope I can help you. Have a nice day!