What do you notice? What do you wonder?

1. Build a square with 4 toothpicks. How do you know it is a square?

2. Use the same 4 toothpicks to build this shape. What stayed the same? What changed?

   

3. Build a rectangle with 6 toothpicks. How do you know it is a rectangle?

4. Use the same 6 toothpicks to build this shape. What stayed the same? What changed?

   

1. Draw 3 different quadrilaterals on the grid. At least 1 of them must be a parallelogram.

   

2. For each of your quadrilaterals determine if it is a:
   • Square
   • Rhombus
   • Rectangle
   • Parallelogram

   Explain or show your reasoning.

3. Draw a rhombus that is not a square. Explain or show how you know it is a rhombus but not a square.
4. Draw a rhombus that is a square. Explain or show how you know it is a rhombus and a square.
5. Diego says that it is impossible to draw a square that is not a rhombus. Do you agree with him? Explain or show your reasoning.