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STANDARDS

CCSS: 6.SP.B.4, 6.SP.B.5, 7.SP.B.3, 8.SP.A.1, MP1, MP5, MP6

TEKS: 6.12A, 6.12B, 6.12C, 6.12D, 6.13A, 7.6G, 7.12A, 8.5C, 8.11A

Engineering Chocolate Chips

People have enjoyed chocolate chip cookies since 1937, when Ruth Graves Wakefield chopped up a Nestlé chocolate bar and baked it into cookies. She served her creation at the Toll House Inn in Whitman, Massachusetts. Two years later, Nestlé Toll House morsels hit store shelves with Wakefield’s cookie recipe printed on the bag.

For more than 80 years, the shape of chocolate chips has basically remained the same—until now. Dandelion Chocolate in San Francisco, California, teamed up with engineer Remy Labesque to redesign the chocolate chip.

A classic chip’s shape is the result of how it’s made: A drop of molten chocolate is put on a flat surface and left to cool. But this shape melts unevenly in the oven. The Dandelion team wanted to make their chip as flat as possible to ensure an even melt. It’s only 1/4  inch high at its tallest point!

“Remy designed a mold for the chip shape,” says Jennifer Roy, of Dandelion Chocolate. But that meant that the company also had to design a machine to fill the mold. That step took a couple of years!

Since Dandelion makes only small batches of chocolate, the chips’ flavor varies depending on the cocoa beans they’re using. Each cocoa-growing region’s bean has a different flavor. “Because the chocolate has such distinct flavors, the bakers are loving it!” says Roy.

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Courtesy of Dandelion Chocolate (Dandelion Chips, Labesque); Courtesy of Nestlé (Toll House); Shutterstock.com (All Other Images)

Answer the questions using the charts and graphs above. Round answers to the nearest whole number. Record your work and answers on our answer sheet.

What is the percentage of cocoa in Dandelion Chocolate’s chips?

A. 40%

B. 50%

C. 60%

D. 70%

About how many metric tons of cocoa beans were produced in 2003?

A. 1.5 million

B. 2.7 million

C. 3.7 million

D. 4.4 million

About how many people surveyed said they prefer dark chocolate?

A. 322

B. 465

C. 555

D. 627

About how much more cocoa did Dandelion Chocolate buy from Central America than Africa in 2018?

A. 14,678 kg

B. 28,081 kg

C. 28,881 kg

D. 35,670 kg

Between which years in the graph did cocoa production increase the most?

A. 1983 & 1988

B. 1993 & 1998

C. 2003 & 2008

D. 2008 & 2013

Which chocolate chip bag is the lowest price per ounce?

A. Guittard’s

B. Dandelion’s

C. Ghirardelli’s

D. Nestlé Toll House’s

A batch of 24 cookies uses 7 ounces of chocolate chips. What’s the cost per batch for chips when using Dandelion’s chips?

About how many more people surveyed prefer milk chocolate than white chocolate?

What was the approximate percent increase in cocoa bean production from 1968 to 2018 rounded to the nearest percent?

Poll your class on what type of chocolate they like best. (Visit math.scholastic.com for a poll template.) Then make a bar graph of the results.

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