Knowing the name of a geometric shape is just the beginning of understanding the details about it, just like remembering a person’s name is only a small part of knowing that individual. It’s important for children to look carefully at the characteristics of a shape, understand which attributes define it, and investigate its similarities to and differences from other shapes. Shape puzzle games use pattern blocks. Pattern blocks are a common preschool math tool. They include multiple copies of six different shapes: a green equilateral triangle, a yellow hexagon, and four quadrilaterals—an orange square, a red trapezoid, a blue rhombus, and a beige narrow rhombus. As children play with pattern blocks, use geometric language when you talk with them.