ࡱ> y{x'` ybjbjLULU ?n.?.?t)))8F)$j)F*****l33 3EEEEEEE$Hh:K|E!<5J3"l3<5<5E**E555<5F**E5<5E55@hB** 0}W)5R?A/B\E0FOAK5K BKB3h3J5H4<4333EE5333F<5<5<5<5d*"*" TITLE: Finding Unit RatesTYPE OF LESSON:% exploratory% developmental% transitional % review% enrichment/extensionSTANDARD(s): MA standard 8.N.3 - Use ratios and proportions in the solution of problems, in particular, problems involving unit rates, scale factors, and rate of change Common Core 7.RP (Ratios and Proportional Relationships - Compute unit rates associated with ratios of fractions, including ratios of lengths, areas and other quantities measured in like or different units. 8. EE Graph proportional relationships, interpreting the unit rate as the slope of the graph. Compare two different proportional relationships represented in different ways.LESSON OBJECTIVE(s): Write ratios as fractions in simplest form Determine unit rates MATERIALS:General Resources Products for stations Station papers Unit Rate Station Worksheet Calculators Technology Computer with access to the internet Projector Figure this website Grocery store websitePRIOR KNOWLEDGE: How to make a ratio How to read decimals on a calculator (ex. When reading .4545454545 on a calculator that this means 45 cents) Haverhill Public Schools  PROCEDURE/ITINERARYActivator Ask students who goes grocery shopping with their parents? Then ask students well if you do not go grocery shopping with your parents who ever goes out and buys food? After having this discussion with students ask them when picking out a product how do you know which company to go for? For example why would you buy Hershey chocolate over Nestle chocolate? See what type of answers your students come up with and make sure to talk about prices. Then open up a grocery store website on your internet browser and project your image to the class. Have a student give you an everyday product that they like to get. Compare that product to another companys product on the board and introduce how to do unit rates. Make sure to also talk about getting the same product but at a bigger size. For example when buying bottled should you get the 12 pack or 24 pack? Talk about why their parents or anyone would buy certain products over another. Developer Have stations set up around your room with different two different products to compare the unit rate (examples below). Have students complete unit rate worksheet well going around to teach station (attached below). Have between 4 to 8 stations depending on how many students you have and how long you want this activity to take. Have groups go to each station staying at each station for about 4 to 5 minutes. Give a sound signal when wanting them to change to the next station. When students have completed all the stations have a conversation about which products they have found to be better and why? Ask students if this will change how they go shopping.Closer For the ticket out the door have students complete the Figure this question (HYPERLINK "http://www.figurethis.org/challenges/c25/challenge.htm" \l "hint"http://www.figurethis.org/challenges/c25/challenge.htm#hint). Project the figure this onto your screen. SUGGESTIONS FOR DIFFERENTIATIONAdaptations When students are going around to each station make sure to have the example products there for a visual. When making the station groups make sure to have students of high and low ability in the same group so they can help each other out. Have an example of how to do the stations on the board. Make sure to model to students how you would like them to behave during the station work. Let students use a calculator to find unit rates. Make sure to show them how to read the numbers off of the calculators. Extensions As homework have students look up their favorite products and compare them to another companys, product using unit rates, did they switch their mind about what product they would buy?FORMATIVE ASSESSMENT: Ticket out the doorfigure this Unit Rate Station Worksheet Homework Submitted: Jenn Donais Station 1 Market Basket Mini Marshmallows 10. 5 ounces 99 cents Campfire Marshmallows 1 ounce 10 cents Station 2 Quaker Oatmeal Express 1.9 ounces 50 cents Quaker Oatmeal Original 11.76 ounces $1.29 Station 3 Spaghettios small can 7.5 ounces 80 cents Spaghettios large can 15 ounces 89 cents Station 4 Skippy Peanut Butter 16. 3 ounces $2.09 Jif Peanut Butter 18 ounces $2.29 Station 5 MultiGrain Cheerios 9 ounces $2.39 Cheerios 8.9 ounces $2.29 Name_________________________________________________Date______________ Ratio and Unit Rate Stations Name of the two productsRatio of how much the product cost to number of ounces/grams in the boxUnit Rate(cost per ounce)Which product is better priced? 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