Dear Bloggers,

Today 2A and 2AF designed and built seesaws.  The children investigated different ways to achieve balance and initially we set up the model of equal weights equal distance from the pivot.  We pretended this was a seesaw in the park.  Each student represented themselves as a Lego brick on the seesaw.  The challenge came when another person ‘Barney’ three times their weight wanted to play with them on the seesaw.  How could the children achieve balance  with such a heavy person without adding or removing any weight.  The solution was to move ‘Barney’ in closer to the pivot so the load arm was shorter.  The challenge continued when we pretended that Barney  refused to move.  The new solution was  to  make the see saw longer so the students could move further away from the pivot and increase the  length of the effort arm.  We had lots of fun and applied lots of great Science.

 

Thanks for calling by

Mrs Garlick