Finn loves building and constructing with his wooden blocks (these are a cheap set from Toys R Us), and I got thinking about the many skills they have for children including: developing fine motor skills, hand-eye co-ordination, spacial awareness, creative problem solving, language, mathematical and social skills.
I put Finn in a playpen so his 8 month old sister doesn't knock everything down.
As well as building, encourage your child to sort the blocks into sets (by colour or shape), incorporate other toys into the play - such as a toy dump-truck which can be used in transporting the blocks to a 'construction site'.
You can also use smooth sticks, small logs and branches to create fences, roads and bridges.
I love these beautiful hand crafted blocks from etsy:
a fort out of sticks and bark for outdoor play,
mountain ranges and cubby-houses out of cushions, sofas, and sheets for indoor play.