Maths.

This is a photo when we finished the big table.In maths yellow and red group were learning about unit, Area, Perimeter. the big table  has 25 square units in the Area .The small one has only 9 square units in the Area. The small table has 20 perimeter and the big one has 20 perimeter.The perimeter is the outline of the table, and the Area is the space in the middle of the table, And also a square unit is one square.And also I learned about that the square is a rectangle.