…by and shared with us by Andy Fehlner, 8th grade algebra teacher in Newton, MA. Thanks for sharing this timely activity with us, Mr. Fehlner! Want to see student work? The Blog: “Teaching Math Rocks” changed the title of the activity for High School students and they have provided student work samples. diapers2016.pdf diapers2016.docx diapers.xlsx diapers2016-solutions.pdf CCSS: 6.EE.9, 7.EE.4, 8.F.2, 8.F.4, 8.EE.8, HS.F-IF.8.B, HS.F-LE.2, HS.F-LE.5, MP7, MP8… 0, 13

# 18 search results for ""8.F.4""

# Getting a new iPhone – which plan should I choose?

…t new ideas.With our activity students select a plan and complete their graphs. Consider posting the graphs up on the wall (or over a document camera). Have the rest of the class identify which cell phone deal matches their graph. Finally students compare paying for the phone up front or with installment payments using T-Mobile, Verizon, Boost, Sprint or Consumer Cellular. Which will be the best deal in the long and short run? The activity: Which-cell-plan2017.pdf CCSS: 8.F.3, 8.F.4, 8.EE.8,… 0, 10

# Should I replace my toilets?

…I'm trying to be more savy about wasting our resources. I have really old fashioned toilets and I'm trying to figure out if I should invest in saving water. Can you help me? The activity: PottyTalk.pdf CCSS: 8.F.3, 8.F.4, 8.F.5, HSF.IF.B.4, HSF.IF.B.6, HSF.IF.C.7, HSF.IF.C.9, HSF.LE.A.2, HSF.LE.B.5 For members we have an editable Word docx and solutions. PottyTalk.docx HowMuchWaterWeUse.xlsx PottyTalk-solution.pdf Click here to see all of our activities listed in one place…. 0, 8

# In honor of Presidents’ Day find out about President’s pay

…raphed and ready to be analyzed and modeled. Or discuss Presidential Pay over time using the interactive plot.ly graphs at the bottom of this post. The activity: Presidents-pay2017.pdf For members we have an editable Word docx, an Excel sheet of our data and graphs, and solutions. Presidents-pay2017.docx presidents-salaries2017.xlsx Presidents-pay2017-solution.pdf CCSS: 6.SP.4, 6.SP.5, 7.RP.3, 7.EE.4, 8.F.4, 8.F.5, HSA.REI, HSF.IF.4 See our graphs on plot.ly…. 0, 8

# How Much is a Tweet Worth?

…ESPN. Since the data is roughly proportional and linear, this activity could be used in a variety of ways. We could assume the relationship is roughly proportional, meaning 6th and 7th graders could work in the realm of 6.RP and 7.RP with this problem. The data is extremely linear, almost a perfect correlation, so you could use this activity as a way to introduce linear relationships or focus more on building a line of best fit. The activity: Tweeting.pdf CCSS: 6.RP.3, 7.RP.2, 8.EE.5, 8.F.4,… 0, 7

# Growth of Facebook update

…, meteoric, or something else? Will the number of Facebook users continue to grow or will it soon be in decline? Let your student analyze the numbers, pick a side and duke it out with math. The Activity: AnnualFacebookGrowth.pdf For members we have solutions and an Excel file with the data and graph. AnnualFacebookGrowth.docx FacebookData.xlsx AnnualFacebookGrowth-solutions.pdf CCSS: 7.RP.3, 8.F.4, 8.SP.1, F-LE, F-IF.6, HSS.ID.B.6… 0, 6

# Earthquake magnitudes, Nepal

…he logarithmic Richter magnitudes. Discuss linear versus exponential growth and if students are ready, get into logs, either base ten or e. You might also use our graph of Richter magnitudes at Desmos.com. earthquake-richter-scaleApril2015.pdf CCSS: 8.F.4, 8.F.5, HSF.LE.A.1, HSF.LE.A.2, HSF.LE.A.4, HSF.LE.B.5 For members we have an editable Word docx and solutions. earthquake-richter-scaleApril2015.docx earthquake-richter-scaleApril2015-solution.pdf Richter-scale-vs-energy-yield-2.xlsx Check… 0, 6

# How much should you spend on this sale?

…w does this graph help you see which price points are the best deal? Act Three: Word doc, solutions and graphs. A great way to sum up the lesson is to ask kids… "if you are going to buy $74 worth of clothes then you might as well buy $______ worth of clothes." For members we have editable word docs, Excel Files & Solutions: Discounts2014.docx Gap-data.xlsx discounts-solutions2014.pdf Solution-graphed.png CCSS:6.RP.3, 7.RP.3, 8.F.4, 8.F.5, HSF.LE.B.5, HSA.CED.A.3 Check out all current… 0, 5

# Jackie Robinson

…e had if he had begun his MLB career at the age of 20. We also take a look at the value of his first baseball card and speculate how much the card will be worth in the future. See the activity, CCSS correlation and the trailer for "42" below. Remembering_Robinson.pdf For members we have an editable doc, an excel chart, and solutions. Remembering_Robinson.doc Robinson-data.xls Remembering_Robinson-solution.pdf CCSS: 6.SP.3, 6.EE.9, 7.EE.3, 7.EE.4, 8.F.4, HSF-LE.A.2, HSF-LE.A.3, MP.1, MP.3, MP.4… 0, 5

# Saving Water Bottles

…ic bottle saving device. How effective is it and is it worth the trouble? This is a great task for graphing, fitting lines and solving equations, all in an in important context. The activity: WaterBottles.pdf For members we have an editable Word docx, and Excel file of computations and graphs, and solutions with added information. WaterBottles.docx ReusingWaterBottles.xlsx WaterBottles-solutions.pdf CCSS: 8.F.4, 8.SP2, 8.SP.3, HSF.LE.A.2, HSS.ID.B.6, HSS.ID.C.7 Save Save… 0, 5

# Monopoly 2014

…ent uses property names that are related to our room and our school in Newton. You can easily change the document to relate to your room and school.) monopoly2014.pdf Activity as questions and separate Excel data: monopoly-wo-excel.pdf + monopoly-data.xls For member we have solutions and an editable Word doc: monopoly2014.docx monopoly2014-solutions.pdf CCSS: 5.G., 6.SP.3, 6.SP.5, 8.F.4, 8.SP, S-ID… 0, 5

# Albert Pujols … On Pace? 2013

…t if his 12th season is his new reality? Then what records will he break? Albert_Pujols_on_pace.pdf For members we have a Word doc, an Excel sheet, and solutions. Albert_Pujols_on_pace.doc Pujols.xls Albert_Pujols-solutions.pdf CCSS: 7.RP.2, 8.EE.5, 8.F.4, HSA.CED.A.2, HSF.LE.A.2 You could also engage your students with creating the equations of these rates and making their judgments and observations from the graphs created. This could be a interesting way to explore the differences between a… 0, 4

# Done with the leaves … now for the snow

…rake my leaves, because 4×3=12 or 12/3=4. What about 6 people? 6×2=12 or 12/6=2? What about zero people? Can't happen because nothing multiplied by zero makes 12 and you can't divide 12 up by zero people. CCSS: 5.G.1 , 5.G.2, 6.EE.6, 6.EE.7, 6.EE.9, 8.F.4, 8.F.5, HSA.CED.2, HSA.REI.10, HSF.IF.4, HSF.IF.5, HSF.IF.7 MP.7, MP.8 The Activity: done-with-leaves2013.pdf For members we've added a Word doc and solutions. done-with-leaves2013.doc done-with-leaves2013-solutions.pdf Looking for more real… 0, 9

# Macy’s Star Rewards Points

…er equations like 100 = 0.1x – 25 in order to find the amount necessary to spend to come out $100 ahead. 8th graders and high school students can go through a similar process and focus more on thinking about inputs and outputs as well as the functional relationship between the variables. The activity can easily be extended to consider slope and y-intercept while studying linear relationships. The activity: Macy'sRewards.pdf CCSS 7.EE.3, 7.EE.4, 8.F.4, HSA.CED.A.1, HSA.CED.A.2, HSF.LE.A.2 For… 0, 4

# 8.F.4

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