The children provide more written responses and are required to explain their thinking. This can be challenging for some because they are use to “knowing it.” Every day they respond to a written math prompt and after every lesson we check for understanding with written responses. Below are some examples of prompts:

• If 10 apples weigh about the same as 2 textbooks, how many textbooks weigh about the same as 25 apples? Explain your thinking.
• Jill used water from a 1-liter bottle to estimate the liquid volume of a container. She filled her container and had water left in the bottle. She said the liquid volume of her container was greater than a liter. Was Jill correct? Explain.