Rectangles and Mondrian

What is a rectangle?  That was the lead question for my Kindergarten class.  We agreed that a rectangle must have four sides, four corners, and some can be tall, long, short and even resemble a house.  I had students look at a Piet Mondrian image and we observed how he focused on using rectangles along with primary colors.

I then gave students an assortment of rectangles to glue down onto their paper.  This was a great lesson to teach proper glueing techniques.  Small dots of glue in the four corners of each rectangle.  

Upon completing their glueing, students were then told to trace around each rectangle using black paint.  I told them the goal was to make a black line around each rectangle almost as if there was a road or maze going through the picture.