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Robert Kaplinsky
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Portfolio Archive:

How Do Skytypers Write Messages?
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How Do Skytypers Write Messages?

8th, GeoBy Robert KaplinskyFebruary 11, 20142 Comments

Download The Situation The Challenge(s) How do skytypers write messages? Question(s) To Ask These questions may be useful in helping students down the problem solving path: Would this message look different to you if you were viewing it from a plane above the message instead of on the ground? Consider This As the video explains,…

how big is the Bermuda Triangle
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How Big Is The Bermuda Triangle?

GeoBy Robert KaplinskySeptember 25, 20132 Comments

    How big is the Bermuda Triangle?   These questions may be useful in helping students down the problem solving path: What is a guess that is too low? What is a guess that is too high? What is your best guess? What assumptions are we making? How can we determine whether the GPS…

infographic on car seat safety
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What Fraction Of Children Are In The Right Car Seat?

3rd, 4thBy Robert KaplinskySeptember 20, 20136 Comments

  The National Highway Traffic Safety Administration (NHTSA) has created infographics to tell people that some children are not in the right car seats.   What fraction of children are in the right car seat?   These questions may be useful in helping students down the problem solving path: What is a guess that is…

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How Much Did The Temperature Drop?

6th, 7thBy Robert KaplinskySeptember 19, 20139 Comments

    How much did the temperature drop?   These questions may be useful in helping students down the problem solving path: What is a guess that is too low? What is a guess that is too high? What is your best guess? Why are there two 20’s on each side of the thermometer? How…

How Much Shorter Are Staggered Pipe Stacks
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How Much Shorter Are Staggered Pipe Stacks?

8th, Alg 2, GeoBy Robert KaplinskySeptember 16, 201313 Comments

  Pipes can be stacked in a staggered pattern or non-staggered pattern.   With that as a reference, watch this video:   How much shorter are 20 layers of staggered pipe stacks? How much shorter are n layers of staggered pipe stacks?   These questions may be useful in helping students down the problem solving…

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How Do You Write A Check To Pay For Something?

2nd, 4th, 5thBy Robert KaplinskySeptember 11, 2013Leave a comment

 

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How Can We Correct The Scarecrow?

8th, GeoBy Robert KaplinskySeptember 9, 20133 Comments

    How can we correct the Scarecrow’s statement so it is mathematically precise?   These questions may be useful in helping students down the problem solving path: How can we determine if the Scarecrow is correct when he mentions “any two sides”?   This problem is a great way to introduce CCSS 8.G.6 or…

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How Much Does A 100×100 In-N-Out Cheeseburger Cost?

8th, Alg 1By Robert KaplinskySeptember 6, 201337 Comments

  A picture of a cheeseburger (to establish that it has one cheese slice and one burger patty): A picture of a Double-Double (to establish that it has two cheese slices and two burger patties): A picture of a 20×20 burger (to establish that it has 20 cheese slices and 20 burger patties): Below are…

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How Can We Water All Of The Grass?

7th, 8th, GeoBy Robert KaplinskyMay 7, 2013Leave a comment

  The field below is covered with many green circular shapes.  Each circle is caused by a sprinkler that was only able to water grass within its spraying radius.  Some areas of the field were not close enough to a sprinkler, received little to no water, and now have dead grass.  

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How Much Money IS That?!

5th, 6th, 7th, GeoBy Robert KaplinskyApril 29, 20135 Comments

    How much money is that?   These questions may be useful in helping students down the problem solving path: What is a guess that is too low? What is a guess that is too high? What is your best guess? What options do you have for counting this money and what are the…

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How Much Money Should Dr. Evil Demand?

Alg 2By Robert KaplinskyApril 25, 20133 Comments

    How much money should Dr. Evil demand? What would the inflation rate have to be for one million dollars in 1967 to be equivalent to one hundred billion dollars in 1997? When would demanding one hundred billion dollars be equivalent to demanding one million dollars in 1967?   These questions may be useful…

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How Tall Is Mini-Me?

5th, 6thBy Robert KaplinskyApril 17, 20134 Comments

    What fraction is Mini-Me of Dr. Evil? How tall would Mini-Me have to be to be one eighth of Dr. Evil’s size? How tall would Dr. Evil have to be if Mini-Me really was one eighth his size?   These questions may be useful in helping students down the problem solving path: What…

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How Did They Make Ms. Pac-Man?

8th, GeoBy Robert KaplinskyApril 10, 201324 Comments

  You want to make a video game similar to the one below and are beginning by animating Ms. Pac-Man.   How can you describe Ms. Pac-Man’s movements?   These questions may be useful in helping students down the problem solving path: What movement did Ms. Pac-Man make? What was the very first thing Ms.…

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Which Ticket Option Is The Best Deal?

6thBy Robert KaplinskyApril 5, 20138 Comments

  You are at a high school carnival’s ticket booth and see the ticket prices below:   Which ticket option is the best deal? Which ticket option is the worst deal? Which ticket options are the same deal? How would you suggest they change their prices?   These questions may be useful in helping students down…

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How Far Apart Are The Freeway Exits?

3rd, 4th, 5thBy Robert KaplinskyApril 4, 20133 Comments

  You are in a car on the freeway and see this sign.   How can you tell which exit is closest to you? How can you tell which exit is farthest from you? How would you show how far apart the freeway exits are on a map? Which exits are closest together? How far…

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Do We Have Enough Paint?

3rdBy Robert KaplinskyApril 1, 20132 Comments

   

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What Rides Can You Go On?

2nd, 6thBy Robert KaplinskyMarch 28, 20132 Comments

  You are going to Knott’s Berry Farm and are not sure which rides you can go on.   What rides are you the right height to go on by yourself?   These questions may be useful in helping students down the problem solving path: What information do we need to know to answer this…

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How Many Stars Are There In The Universe?

8thBy Robert KaplinskyMarch 28, 20134 Comments

    How do astronomers estimate how many stars exist? How many stars are there in the universe?   These questions may be useful in helping students down the problem solving path: What is a guess that is too low? What is a guess that is too high? What is your best guess? Can we…

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Do You Have Enough Money?

2nd, 3rdBy Robert KaplinskyMarch 25, 20135 Comments

  You want to use the money you’ve collected in your coin bank to buy the game pictured above.   How do you know if you have enough money in your coin bank to buy the game? If there is extra money, how much extra do you have? If there is not enough money, how…

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Which Bed Bath & Beyond Coupon Should You Use?

7thBy Robert KaplinskyMarch 21, 20134 Comments

  Bed Bath & Beyond frequently sends out two different coupons to its customers.  One coupon is “20% off one single item.” and the other coupon is “$5 off any purchase of $15 or more.”   Which coupon will save you the most money?   These questions may be useful in helping students down the…

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