Skip to content
Robert Kaplinsky
I share math strategies and resources that create problem solvers, not robots.
Robert KaplinskyRobert Kaplinsky
  • Problems
    • Open Middle Problems
    • Real World Problems
  • Blog
  • Professional Development
    • Book
    • Online Workshops
    • Speaking
    • Webinars
  • About
Search:
  • Problems
    • Open Middle Problems
    • Real World Problems
  • Blog
  • Professional Development
    • Book
    • Online Workshops
    • Speaking
    • Webinars
  • About

Portfolio Archive:

ZoomDetails

Are We There Yet?

3rd, 4thBy Robert KaplinskyDecember 6, 20122 Comments

  You and your family are driving in a car and have to make a few stops before you reach your final destination.  You check your GPS navigation and it shows you how long it will take to go from one destination to the next but not what time you will arrive at your final…

ZoomDetails

Which Chinese Food Coupon Should I Use?

7thBy Robert KaplinskyDecember 4, 2012Leave a comment

  You are planning on having Chinese food including some Chicken Lo Mein delivered to your home.  You know you will spend at least $25.   Which coupon should you use to save the most money? If you were planning on buying the Orange Chicken (but not any Chicken Lo Mein) and spend at least…

ZoomDetails

How Big Is The Vehicle That Uses Those Tires?

7thBy Robert KaplinskyNovember 30, 20121 Comment

  You are driving on the freeway when you see a large truck carrying these enormous tires.   How big is the vehicle that uses those tires?   These questions may be useful in helping students down the problem solving path: What are we measuring when we are talking about how “big” something is? What…

ZoomDetails

Where Would The Angry Birds Have Landed?

Alg 2By Robert KaplinskyNovember 27, 20121 Comment

    Where would the Angry Birds have hit the ground if they hadn’t crashed into anything on the way?   These questions may be useful in helping students down the problem solving path: What is a guess that is too close? What is a guess that is too far? What is your best guess?…

ZoomDetails

How Many Movies Can You See In One Day?

3rd, 4thBy Robert KaplinskyNovember 26, 20124 Comments

  It’s a hot day outside and you and your parent/guardian want to cool off by going to the theater to see some movies.  The longer you stay at the movie theater, the longer you will stay cool.   Create a schedule that shows the most movies you could see in one day.   These…

ZoomDetails

Which Carrots Should You Buy?

6thBy Robert KaplinskyNovember 24, 20122 Comments

  You are at the grocery store and have a coupon for $0.50 off of two 16 oz. bags of carrots.  You notice that the 16 oz. bags of carrots are selling for $1.99 each and the 32 oz. bags of carrots are selling for $2.99 each.   Which carrots should you buy if you…

ZoomDetails

How Fast Can You Throw A Baseball?

5th, 6thBy Robert KaplinskyNovember 21, 20121 Comment

  These children are using a radar gun to figure out how many miles per hour they can throw a baseball.   Find out how many miles per hour you throw a baseball without using a radar gun.   These questions may be useful in helping students down the problem solving path: What information would…

ZoomDetails

Do Car Companies Give Some Countries Better Warranties?

6thBy Robert KaplinskyNovember 21, 20121 Comment

  Not all countries use the same units of measure, so companies make changes to their advertisements so that their products are more easily understood by the people reading them.  Hyundai sells cars all over the world and is proud of their powertrain warranty which protects the engine, transmission, and other parts that make the…

ZoomDetails

Can You Earn $10/Hour Selling Lemonade?

6thBy Robert KaplinskyNovember 18, 20127 Comments

  Everyone has seen little kids selling lemonade, but how much money can you actually make doing that?   Can you make $10 an hour or more selling lemonades? Can you think of another way you could do it? What’s the most money you think you could make per hour selling lemonade?   These questions…

ZoomDetails

How Big of a Problem are Littered Cigarette Butts?

5th, GeoBy Robert KaplinskyNovember 17, 20121 Comment

    How big of a building would all the cigarette butts littered every day in the United States fill?  A classroom?  An auditorium?  A stadium? How long would it take to fill a ____________? How long would a line of cigarette butts littered each day measure?   These questions may be useful in helping…

ZoomDetails

How Many Gumballs Fit In The Gumball Machine?

8th, GeoBy Robert KaplinskyNovember 16, 20121 Comment

  “At 79 inches tall (6’10”), our Jumbo Giant Gumball Machine is one HUGE gumball machine that will tower over children and adults alike! This gumball machine has a massive globe that can hold ##,### gumballs, but comes with a smaller inner globe to allow you to stock it with ##,### gumballs to save money…

ZoomDetails

How Can You Replicate This Prank?

3rdBy Robert KaplinskyNovember 16, 2012Leave a comment

    How much white tarp and black tarp would you need to replicate this prank? If you wanted to make a new message on the Hollywood sign, what would it be and how much white tarp and black tarp would you need?   These questions may be useful in helping students down the problem…

ZoomDetails

Which Peanuts Are The Best Deal?

6thBy Robert KaplinskyNovember 15, 20121 Comment

  You are going to a baseball game and you love to eat salted peanuts while watching the game.  You know that you can buy peanuts there, but you know it is cheaper to bring your own.  When you go to the grocery store to buy some, you see two choices: $3.59 for a 20…

←1234←
Robert Kaplinsky
© 2010-2025 Glenrock Consulting, LLC. All rights reserved.
The RK logo, Empowered Problem Solving, and Ed Consultants Lab are the registered trademarks of Glenrock Consulting, LLC.
Terms and Conditions of Use | Privacy Policy | Disclaimer | Advertising Disclosure
Go to Top