How Many Chips in a Chocolate Chip Cookie?


Tip: How Many Chips in a Chocolate Chip Cookie?

How do I do it?
A great hands-on, relevant, and engaging activity for addressing how to represent and interpret data at different grade levels K-12!  Buy a package of chocolate chip cookies (you can use oatmeal raisin cookies to avoid chocolate allergies) - enough for each student to have one.  Start with the question: "How many chips are in a chocolate chip cookie?"  Each student guesses. The guesses can be recorded on slips of paper, a class recording sheet, arranged on the board on sticky notes etc. depending on the age of students.  The guesses can be plotted on a line plot or bar graph.  Pass a cookie to each student.  They break them apart and count the chips and record the actual number of chocolate chips in their cookie. The number of chips or raisins can be recorded on a new line plot or bar graph.  Next, students can compare the prediction graph to the actual graph while they eat their cookies.  Finally, ask students to draw conclusions about what they learned. 

Variations & Extensions
Extension activities can include calculating mean, median, mode etc. They can also find the difference between their prediction and actual amount of chocolate chips counted in each cookie. They can use the cookies to write a math problem and have a partner solve it. (E.g. "If my cookie has 14 chocolate chips, and I take a bite that has 4, how many are left?")

Common Core Mathematical Practice Standards 2&3
Reason abstractly and quantitatively.

Model with mathematics.

Tricia Gallagher-Geurtsen
Tricia Gallagher-Geurtsen


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