# Valentine’s Day (11 possibilities)

Sadly, Necco Wafers (made by New England Confectionary Company) went out of business last year. The Sprangler Candy Company, who bought the rights to make those conversation hearts, will not produce Sweetheart candies this year but the little hearts will return in time for the 2020 Valentine's Day.

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

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

Valentine Cardioid - Four ways to construct cardiods for Valentine's Day ... polar graphing,

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

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

The size of chocolates - Which is bigger? - Students estimate volume of various candies by approximating surface area or finding their mean radius.  Updated!  3.MD.5, 3.MD.6, 6.G.1, 7.G.4, 7.G.6

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

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

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

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

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