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Problem Solving Block The Schluter Family was going for a picnic. They made sandwiches from items that were in their refrigerator. They did not count all of the sandwiches but they did keep track of the different kinds of sandwiches they made. From the following information, can you figure out how many sandwiches were made? A sandwich does not have more than one of any ingredient, although it can have two or more different ingredients. Thirteen sandwiches had a slice of cheese. Fourteen had a slice of salami. Thirteen had a slice of tomato. Eight had a slice of cheese and a slice of tomato. Three had only a slice of salami. Five had a slice of tomato, a slice of cheese and a slice of salami. Eight had a slice of tomato, and a slice of salami. (See attachment in eduphoria for directions on facilitating of discussion)

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Warm Up The fourth grade decided to buy gold fish for class pets. They plan to put 12 gold fish in each of their aquariums. If they have 8 aquariums, how many gold fish must they buy? Casey is decorating tables for her party. She has 30 candles to decorate five tables. If she puts an equal amount of candles on each table, how many candles will be on each table? What number is in the hundred place? 89,651 4. Each number in Set A is related in the same way to the number in Set B. If the number in Set B is 6, what is the related number in Set A? 5. Bruno picked a number between one and twenty. Then he add two to the number and multiplied the new number by three. The result was 36. What was the number Bruno picked? 6. Amy went to the Cowboy game. She bought a ticket for $50, a coke for $6 and a box of popcorn for $3. What information is needed to find out how much money Amy has left? SET A 27 45 63 SET B 3 5 7

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Target the Question Today is December 3. Christmas is December 25. How many days until Christmas? How much more do 5 candy bars cost than 8 chocolate mints? 22 Days Until Christmas!

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**Target the Question How much more do 5 candy**

bars cost than 8 chocolate mints?

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**Ten Minute Math Closest Estimate- 1**

You will have 30 seconds to decide which estimate you think is the closest. Send your answer in on your CPS remote. How did you break the number apart? How did you determine the magnitude of the answer? If you change the numbers in the problem, how did you change then and why? 36 x 74 = 280 2,800 3,200

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**Ten Minute Math Closest Estimate- 2**

You will have 30 seconds to decide which estimate you think is the closest. Send your answer in on your CPS remote. How did you break the number apart? How did you determine the magnitude of the answer? If you change the numbers in the problem, how did you change then and why? 67 x 41 = 240 2,400 2,800

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What is a polygon? Look at this set of shapes. The shapes at the top are called "polygons." The shapes at the bottom are not. Talk to your partner about how the shapes at the top are different from the shapes at the bottom. How can we determine if a shape is a polygon?

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**What is a polygon? Number your sheet of notebook paper 1 to 12.**

Talk with your partner about each of the shapes on this sheet. When you agree that one of these shapes is or is not a polygon write P for Polygon or NP for Not Polygon. If you can't agree, put a question mark next to the shape.

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What is a polygon? We are going to play a SILENT game called “Place that Shape.” One at a time, a student from each pair will bring the shape they drew up to our circle chart. You may place the shape inside the circle if it is a polygon or outside the circle if you think it is not a polygon. When a shape is placed on the circle chart, we will all think about it without saying anything. Is it in the right place? When it is your turn, if there is a shape you think is in the wrong place, you may place a question mark next to the shape. Once all shapes are on the chart, we will discuss any shapes that were questioned. Polygons

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**____________________ and a polygon cannot have ________________.**

What is a polygon? Based on what we have investigated, let’s write down some of your ideas about polygons. For a shape to be a polygon, what must be true? What makes a shape not a polygon? How can we complete this statement? A polygon must have ___ ____________________ and a polygon cannot have ________________. Polygons

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Guess My Rule Today you will play Guess My Rule with the Power Polygons. One person will think of a rule and select two polygons that fit the rule to place on a sheet of paper and one polygon that does not fit the rule to set off the piece of paper. The other players must determine which pieces fit the rule and which do not fit the rule by looking at the two polygons player one put out. When a player thinks they know the rule, they can say the rule. Example: What is my rule? Rule: Has right angles. Other rules you might use could be: Have four sides/three sides/five sides, etc. Have sides that are all the same size Have angles that are all the same size Have angles that are different sizes Have no right angles Fits Rule Does not fit Rule

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**Student Activity Sheet 17**

Independent Work Student Activity Sheet 17

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1.The fourth grade decided to buy gold fish for class pets. They plan to put 12 gold fish in each of their aquariums. If they have 8 aquariums, how many.

1.The fourth grade decided to buy gold fish for class pets. They plan to put 12 gold fish in each of their aquariums. If they have 8 aquariums, how many.

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