There are many ways to make a paper rose. Here is one of the methods which I consider to be quite simple.
Glimpse of the Rose:
Cut out heart shaped pieces of of paper. Cut four pieces in each size (total of three sizes).
Roll each piece at the corners using a pencil as shown.
Each piece would have its corners rolled this way:
Take a piece of string or a stick and roll the smallest piece at the center and glue it. You can crumple it a bit.
Apply glue on each petal and attach it in layers.
Start with smaller pieces of petals and go on by increasing the size of the petal.
Glue all the petals and allow the glue to dry for some time. The rose is finished.
You can use this method and make roses using magazine paper or recycle gift wrapping paper.