1. Pour out all the pieces of the puzzle, classify them according to their shapes, find all the straight pieces, and splice them together to form the edge of the whole puzzle.

2. Observe the pattern and color of the jigsaw puzzle and find the matching pieces for splicing. You can try different combinations to see which one is more in line with the overall pattern and color.

3. In the process of jigsaw puzzle, carefully observe the shape, color and pattern of each fragment and try to find the best splicing method.