Valentine’s Day + NBA All-Star Voting + Presidents’ Day

How does the voting for the NBA All-Star team work?

Updated for 2020!
Fans, the media, and the players vote for who should be on these teams but how are their total votes computed?  Evenly?  Weighted?  What formula does the NBA use to determine who is an All-Star? 6.EE.2, 7.EE.3, HSA.SSE.A.1

Have a heart Canstruction
Estimate the quantity of kidney bean cans needed to build this giant heart.  Volume, analysis, collaboration, estimation ... MP1, MP2, MP3

A parametric heart ... with love
Students use unit triangles and manually calculate sine and cosine of π/2, π, 3π/2, and 2π as they try to graph this great-looking, curvy heart using parametric equations.  We also have them create it using Excel, on a graphing calculator and with online graphing tools. HSG.SRT, HSF.TF

How did I graph this heart?
What equations helped me draw this Valentine's heart? 8.EE, 8.F, HSA, HSG

President's Pay for Presidents Day

The President's have only received a pay increase 5 times in the United States. Picture it with a step graph. Calculate the actual salary using the CPI (Consumer Price Index). Do the Presidents need a raise? 6.SP.4, 6.SP.5, 7.RP.3, 7.EE.4, 8.F.4, 8.F.5, HSA.REI, HSF.IF.4

Valentine Cardioid
Four ways to construct cardiods for Valentine's Day ... polar graphing, HSN.CN.B

Sweetheart Candies are back
Unit rate and ratio activity using those little candy hearts.  6.RP, 7.RP, N-Q

Holiday Candy Sales
Translate a pie chart of data to actual dollars spent on Valentine's Day candy, Halloween, Christmas, Easter, and Hanukah. 6.RP.3 , 7.RP.3  7.EE.3

Chocolate-raspberry heart-shaped cake
Students build a heart cake and use ratio information to find the quantities of cake and icing resulting from increased dimensions. 7.G.B.4, 7.G.B.6, 7.RP.A, 7.EE.B, 8.G.C.9, HSG.GMD.A.3, HSG.MG.A.1, HSN.Q.A, HSA.CED.A.1

Where have all the flowers ... come from?
Analyze a pictograph to see what can be deduced. Cost of flowers in different countries, source of flowers, how many hours you must work to earn a rose ... 4.OA, 4.NF, 5.NF, 6.RP.3, 7.RP

A gorgeous glittery Mother's Day heart
Students use different methods to figure out the area of this heart and how many sequins are required to fill it and make a spectacular card.  3.MD.C, 4.NBT.B, 5.NBT.B, 6.G.A, 7.G.A

Which Sweet Heart candies are the best deal?
Students decide which quantity of Sweet Heart candies is the best deal. Ratio tables, unit ratios, devising convincing arguments. 6.RP.2, 6.RP.3, 7.RP.2

The size of chocolates
In this activity students approximate the volume of chocolate candy by finding surface area and approximating depth with grids and the mean radius method. 3.MD.5, 3.MD.6, 6.G.1, 7.G.4, 7.G.6

Which car should I buy?
Presidents' Day is also about car sales. Should you buy a hybrid car or an electric car to save money?  What about the environmental considerations? Students create equations for finding the break-even points of these vehicles by mileage and years of ownership. 6.SP, 6.RP, 7.RP, 7.SP, 8.SP, 8.EE.C, HSA, HSS.B, HSN

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