Clicking on the above image will take you to Brian's movie of making Hot chocolate.
Act I - Watch the movie. Making hot chocolate movie or by clicking on the picture above. What do you notice and wonder?
Act II - What information would be helpful to figure out how many 1/4 teaspoons you need? How many 1/4 teaspoons are equivalent to a whole teaspoon? How can you visualize this? What math models this problem? If helpful check out this online fraction bar tool.
Act III - The reveal - Brian makes the chocolate.
Sequel - What if I only had 1/2 teaspoons? How many 1/2 teaspoons would I need to use? What if I only had 1/8 teaspoons? How many 1/8 teaspoons would I use? What pattern do you notice?
CCSS: 3.NF, 4.NF, 4.MD, MP1, MP7
For members we have our solution and suggestions for the activity.