Current location - Training Enrollment Network - Mathematics courses - Ask how to do the first grade math summer homework on page 36 in Hubei primary school. The topic is; Please divide the bottom into four pieces of the same shape and size.
Ask how to do the first grade math summer homework on page 36 in Hubei primary school. The topic is; Please divide the bottom into four pieces of the same shape and size.
As shown in the figure, mark (red lines) that must be separated first.
Then these dividing lines are rotated 90 degrees around the center point and finally connected to the center.
Most of these problems are completed by rotational symmetry, and it is very important to rotate around the central point.