Presentation on theme: "Warm Up 1, __, __, __, __,12 1 x 12 _________ 12 x 1 _________"— Presentation transcript:
1 Warm Up 1, __, __, __, __,12 1 x 12 _________ 12 x 1 _________ Draw Arrays:List Factors:1, __, __, __, __,12Product:12Write Equations:How many equal groups?1_ equal groups of ____ make _12_12_ equal groups of ____ make _1_____ equal groups of ____ make ___1 x _________12 x __________________1,
2 Ten Minute Math Today's Number: 471 Students create an expression to equal 471 using addition and subtraction.For example: 471= and =471How can you be sure this expression equals 471?Explain your strategy so that the rest of the class can understand it.Describe and write about your strategies.
3 Target the QuestionElias runs a concession stand at the football stadium. The chart shows the cost of the items that Elias sells.Akasha bought 4 sodas. What is the least/most amount of money she could have spent?ItemCostHot Dog$2Nachos$3Popcorn$1Pickle$0.50Small Soda$1Med. Soda$2Lg. Soda$3
4 Array CardsHow can we find the products represented by these arrays?Are there any here that seem easier then others?What do you already know about these numbers that could help you figure out how many squares are in each of these arrays?Share strategies
5 You may have used:Skip countingRemembering patterns for multiplying with 10 and 11Just knowingReasoning from knowing multiplication combinationsHave students demonstrate where the smaller arrays are located within the larger arrays.
6 Combinations I am Still Working On Review directions for game and Model.Have students divide a blank sheet of paper into two columns, titled “Combinations I Know” and “Combinations I’m Working On.”As students play the game in pairs, students will place each multiplication expression in the correct column.Combinations I KnowCombinations I am Still Working On
7 Draw the groups of 9 that would make 63. How Many Groups?____ groups of 8 make 24____ x 8 = 243. ____ groups of 9 make 63____ x 9 = 63Draw the groups of 9 that would make 63.How many total Gatorades are shown on the left?6. Explain how you came up with your answer in writing.
8 Closure Discuss “Another Array Picture.” In this picture, a case of yogurt containers that come on packs of 4 has been opened, and some the 4-packs are missing.How many yogurts were in this case to begin with?Allow students to work in pairs to solve the problem. Then gather ideas for how to solve the problem, and write them on the board.