# 4th of July

…IF Flag Art – A little ratio art might be a fun way to get ready for July 4th. In this past Memorial Day activity students measure; create whole number ratios for the official U.S. flag; decide how our artistic flags will be different from the official flag; make stars from regular pentagons, and finally create a flag design in honor of the fourth. CCSS: 4.NBT, 4.NFB, 5.NBT, 5.NF.B, 6.RP.1, 6.RP.2, 6.RP.3, 7.RP.1, 7.RP.2, 7.G.1… 0, 8

# Flag Art

…icial U.S. flag; decide how our artistic flags will be different from the official flag; make stars from regular pentagons, and finally create a flag design in honor of Memorial Day. The activity: Flags.pdf CCSS: 4.NBT, 4.NFB, 5.NBT, 5.NF.B, 6.RP.1, 6.RP.2, 6.RP.3, 7.RP.1, 7.RP.2, 7.G.1 Pentagon Cut-outs: SmallPentagons.pdf RegularPentagons.pdf VariousPentagons.pdf For members we have an editable Word docx and solution/teacher tips. Flags.docx Flags-solution-teacher-talk.pdf Or use our previous… 0, 8

# Cheesy Goldfish crackers

…ll then truly be yummy math. Check out a second version of the activity (scroll down in the post) that solely focuses on and makes a connection between the ratio standards in grades six and seven. Goldfish Activity.pdf Addressed CCSS: 5.G.2, 6.RP.1, 6.RP.2, 6.RP.3, 6.NS.2, 7.RP.2, 7.RP.3, 8.EE.5 For members we have an editable Word doc and solutions and tips. Goldfish-cheesy.doc Goldfish Solutions & Teacher Tips.pdf We have a second version of the Goldfish problem that is meant to only… 0, 17

# Longest NHL overtime games in history

…e sure to see if the Bruins and Blackhawks game one of the Stanley Cup falls in this top ten list of longest hockey games ever played and if the ratio of game minutes to TV minutes holds up to our 1:2.5 estimate. Enjoy! Longest_NHL_Matches_Ever.pdf For members we have an editable Word doc and solutions. Longest_NHL_Matches_Ever.doc Longest_NHL_Matches_Ever-solutions.pdf CCSS: 3.MD.1, 4.MD.2, 5.MD.1, 6.RP.1, 6.RP.3, 6.EE.6, 6.EE.7, 6.SP.3, 7.RP.2, 7.RP.3… 0, 10

# Not enough mashed potatoes

…ent measures for various-sized Thanksgiving gatherings, to explain their thinking in calculating these figures and to judge how many servings could be created from 7 ½ pounds of potatoes. The Activity: not-enough-potatoes.pdf CCSS: 5.NF.6 , 5.NF.6 , 6.RP.1 , 6.RP.2 , 6. RP.3 , 7.RP.1 For members we have an editable Word doc and solutions below. not-enough-potatoes.docx not-enough-potatoes-solutions.pdf We’ve just been given an extension to this lesson. It’s-all-gravy.pdf and for members we have… 0, 9

# Big Burger

…s about the “big burger” below. Thank you to Robert Kaplinsky (check out his great math activities on his website) for letting us know about the videos from the History Channel. Consider starting the activity with these videos. CCSS: 5.NF.6, 6.RP.1, 6.RP.2, 6.RP.3, 6.NS.1 The activity: BigBurger2014.pdf Three teachers in Georgia created a version of this post that they felt was suitable for their 5th grade students. Many thanks to Jenise Sexton, Michael Wiernicki, and Graham Fletcher for… 0, 8

# The Boston Marathon

…s as to the fastest marathon time. We’ve gathered a lot of great data and asked some sensible and some surprising rate questions. Enjoy the conversation of page 1 of the activity as a class task and then set your students to work calculating the rest. BostonMarathon2015.pdf   For members we have an editable Word docx and solutions with teaching suggestions. BostonMarathon.docx BostonMarathon-solutions.pdf CCSS: 5.MD.1, 6.NS.3, 6.RP.1, 6.RP.2, 6.RP.3, 7.RP.1 We also have a more historical… 0, 8

# The Euro and the international debt crisis

…r with the Euro, practice translating the Euro’s value to dollar amounts, and work with comparisons of debt, gross domestic products, and average debts per person. Students will gain a better appreciation of what the news is all about. They will become familiar with the value of the Euro, can appreciate the complexity of the present financial crisis, and will be able to contribute to financial observations and discussions at home. CCSS: 6.RP.1 , 6.RP.2 , 6. RP.3 , 7.RP.1 , 7.RP.2 Euro.pdf For… 0, 8

# Glowing rectangles

…ng rectangles” and then get the activity going. Let kids work with partners or groups, see how far they can get on their own, before you need to bring the class together from some discussion on similar figures. Students should have a little experience with ratio tables and proportionality if they are going to try this activity without some direct instruction. Or use the activity as review and application of proportionality and similar figures. glowing-rectangles2015.pdf CCSS: 6.RP.1, 6.RP.2, 6…. 0, 8

# Losing team in the playoffs, 2015

…am had the worst record if many of the teams played a different number of games? Seems like a good time for students to think about ratios, percent and proportionality in a familiar context. Enjoy the playoffs … and the math. CCSS: 4.NF.2 , 6.RP.1 , 6.RP.2 , 6.RP.3 , 7.RP.3 The Activity: losing-team-in-the-playoffs2015.pdf For members we have an editable Word doc, teaching suggestions and solutions. losing-team-in-the-playoffs2015.docx losing-team-playoffs-solution.pdf Here is a great idea from… 0, 7

# Big Bucks

…who makes the most per year? In this activity, with a twist on unit rate, students find the average pay per year or “unit rate of pay” for a collection of highly paid athletes. Students think about unit rate, proportionality, slope and the relationship between multiplication and division. The activity: big-bucks2016.pdf For members we have an editable Word docx and solutions. big-bucks2016.docx big-bucks-solutions2016.pdf CCSS: 6.RP.2, 6.RP.3, 7.RP.2, 8.EE.5 Check out all current Yummymath… 0, 5

# Does it pay to get educated?

…to-get-educated.pdf Ken Waldman of Newton Public Schools, modified our post to make it a little easier for his students. This is his modification: does-it-pay-to-get-educated-Waldman.pdf For members we have an editable Word doc, an Excel sheet of the data and chart, and solutions. does-it-pay-to-get-educated.doc income&ed-level.xlsx does-it-pay-to-get-educated-solutions.pdf CCSS: 4.OA.2, 5.NBT.5, 6.RP.3, 6.NS.3, 6.SP.3 6.SP.4, 6.SP.5, 7.SP.4, MP.1, MP.3… 0, 6

# Cost of light bulbs – updated!

…from 5th grade through high school. Students might also want to compare the costs of each bulb over time for various number of bulbs in their home using this interactive Desmos graphing application. LightBulbs2016.pdf CCSS: 5.NBT.3, 5.NBT.7, 6.NS.3, 6.RP.3, 6.EE.1, 6.EE.9, 8.EE.8, HSF.IF.C.7.B, HSA.REI.C.6, HSA.CED.A.2 For members we have a Word docx, and Excel sheet with loads of data, and solutions and teacher suggestions below. LightBulbs2016.docx Bulbs2016.xlsx LightBulbs2016-solution.pdf… 0, 6

# NFL Math Activities

Home team advantage – In this activity students use an infographic to compare NFL team home and away wins. Students consider the best home team, the best away team and consider if NFL teams really do seem to have a home field advantage. 6.RP.1, 6.RP.2, 6.RP.3, 7.SP.4 NFL draft picks – Every spring, roughly 250 college football players are drafted by NFL teams through the NFL draft. How much does where they are drafted effect their earnings? 6.EE.9, 8.F.3, HSF.LE.A.1 4th down – It’s 4th down…. 0, 36

# Foil prank

…e presented, have the class add all of the answers together to make a grand total for the class. Using this information and the cost of the heavy duty aluminum foil, calculate the total cost. Note that it is \$27.56 for two rolls of 150 square feet each. That gives a unit rate of approximately 9.3 cents per square foot. Enjoy and huge thanks to Robert Kaplinsky for this interesting and tricky activity. CCSS: 6.G.4, 6.RP.2, 6.RP.3, 7.G.6, HSG.MG.1 Sources:… 0, 6