# How Many Donuts is That?

…level of students, and the conversations you are having in class. What might come up? different areas or arrays, scale, estimation, volume and in particular volume by multiplying the base area by the number of layers. CCSS: 4.MD.3, 4.NBT.5, 4.OA.3, 5.MD.3, 5.MD.5, 6.G.1, 6.G.2, 6.RP.3, 7.G.1, 7.G.6, MP1, MP2, MP3, MP6, MP7 ExtraInfo.pdf Act Three: This news clip gives the solution. Sequel: Now that you know how many donuts are in the box, what dimensions and number of rows and columns could… 0, 11

# How Many Pennies did Otha Save?

…athematical thinking while practicing division and multiplication with decimals The number of pennies he saved: Actual original Article – nothing grayed out. For members we have teacher suggestions and teaching tips: Solutions-Teacher-Tips.pdf CCSS: 5.MD.3, 5.NBT.7, 6.NS.3, 7.NS.3, 7.EE.3 This activity could span a number of grade levels. Kids are estimating, reasoning and working with rational numbers. Finally, this is a great activity for high school students to engage in modeling and… 0, 9

# Shrinking Toblerone

…so not fair … or is it? You can check out a video news story on the delicious shrinking Toblerone bar here. Two sizes of Toblerone bars are now configured differently. How much did they lop off? How much did the price per gram of chocolate change? Is the price per gram still the same, if not how might you adjust the price of the products to make it fair? How much could you buy for \$1.00? Could you have designed it better? The activity: toblerone-reduction.pdf CCSS: 5.MD.3, 6.RP.2, 6.RP.3,… 0, 4

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# Launch of the next ISS crew

…huttles. Students analyze the costs and capacities of the two vehicles (Shuttle and Soyuz) and come to some conclusions, as our space agency did, about the kind of vehicle that gives the most benefit for the buck. November-13th-launch-new-crew.pdf Solutions, editable Word doc and observations for members. November-13th-launch-new-crew.doc new-crew-launch-solutions.pdf CCSS: 4.MD, 5.MD.3, 6.RP.3… 0, 5