Step one . . .

or playing nick-knack paddy-whack on my knee.
      
       Kathy gave me a box of a dozen puzzles like this. If you can take it apart you can put it together if you have a good memory; mine is not what it was. This was quite a challenge to take apart and I snapped each piece in sequence so could put it back together as the solutions provided are for a different; smaller, set of six puzzles. At least this puzzle stayed together as it was taken apart, many just fall apart after a few pieces are removed.