
Solution


Waste in our World  August 09 


A Visit to Your School  May 09 


Where Is The Center?  April 09 


The Library Problem  Mar 09 


Multiplication along the Silk Road  Feb 09 





The Barn Quilt Problem  Dec 08 


Flags by the Numbers (patterns and numbers and operations)  Nov 08 


The AquaDom  One Large Aquarium (geometry and measurement)  Oct 08 


Measuring the "Grand" in the Grand Hotel (problem solving and measurement)  Sep 08 


Touring Washington DC (problem solving)  Aug 08 
Solution 

Walk for the Paws (algebraic thinking, problem solving and reasoning)  May 08 
Solution 

Coloring Maps (problem solving and reasoning)  Apr 08 
Solution 

Using Your (Number) Sense of Balance (number sense, problem solving and reasoning)  Mar 08 
Solution 

Creative Arithmetic (problem solving and reasoning)  Feb 08 
Solution 




RockPaperScissors (probability)  Dec 07 
Solution 

How Many Triangles? (geometry, patterns, algebraic reasoning) 
Solution 

Height in Coins (measurement, estimation) 
Solution 

Stained Glass Window Designs (geometry, fractions) 
Solution 

From Leaks to Liters: Estimating Water Loss (measurement, data collection and analysis) 
Solution 

Characteristics of Shapes (geometry) 
Solution 

Knights in Armor (probability, ratio and proportion) 
Solution 

Sharing Cookies (algebraic reasoning, problem solving and reasoning) 
Solution 

Nine Jumping Numbers (patterns, algebraic reasoning) 
Solution 

The Broken Calculator (number sense, arithmetic) 
Solution 

Shoes for a Pen Pal (data collection and analysis) 
Solution 

Making Brownies (fractions, arithmetic) 
Solution 

Hummingbird Migration (data collection and analysis, measurement, multiplication) 
Solution 

Terrific Trapezoids (geometry, problem solving and reasoning) 
Solution 

Dicey Situation (probability, data collection and analysis) 
Solution 

Counting Counts! (number system) 
Solution 

More than a Guess (ratio and proportion) 
Solution 

Patterns Galore! (patterns) 
Solution 

Cheerio Count (data collection and analysis, estimation, multiplication) 
Solution 

Talking Turkey (data collection and analysis, fractions, arithmetic) 
Solution 

The Better Box (measurement, geometry, multiplication) 
Solution 

Miniature Zoo (problem solving and reasoning) 
Solution 

What's the Overlap? (geometry) 
Solution 

Candy Conundrum (measurement, problem solving and reasoning) 
Solution 

Risky Allowance (probability) 
Solution 

Measuring Up (measurement, fractions) 
Solution 

Make It 36 (geometry, multiplication) 
Solution 

A Word to the Wise (arithmetic, problem solving and reasoning) 
Solution 

Winning Strategy (problem solving and reasoning) 
Solution 

Postage Due (arithmetic, algebraic reasoning) 
Solution 

Pocketful of Coins (money, fractions) 
Solution 

Egg Dilemma (problem solving and reasoning) 
Solution 

Triangular Bicycle Flags (geometry, geoboards) 
Solution 

Just a Second (time, multiplication) 
Solution 

Catching Growing Night Crawlers (geometry, algebraic reasoning) 
Solution 

Muffin Mania (algebraic reasoning, fractions, problem solving and reasoning) 
Solution 

Decorative Plate Hanging (arithmetic, problem solving and reasoning) 
Solution 

Holiday Fun (algebraic reasoning) 
Solution 

Building a Box (geometry, problem solving and reasoning) 
Solution 

Seymour Skwares (geometry, multiplication) 
Solution 

PatternBlock Quilts (geometry) 
Solution 

Farmer MacDonald (data collection and analysis, graphs) 
Solution 

Shape Search (geometry) 
Solution 

March Mathness (statistics and data analysis) 
Solution 

Picasso Masterpiece (geometry, mathematical connectionsart, technology) 
Solution 

PerfectSquare Geometry Partners (arithmetic, problem solving and reasoning) 


Package Puzzle (algebraic reasoning) 
Solution 

The Shopping Spree (estimation, algebraic reasoning) 
Solution 

Fractionberry Pie (fractions) 


A Walk in the Park (problem solving and reasoning, geometry) 
Solution 

Marble Mayhem (data collection and analysis, problem solving and reasoning, arithmetic) 
Solution 

Bike Trike (data collection and analysis) 
Solution 

Average Days of Spring (arithmetic, patterns) 
Solution 

Have a Heart (geometry, measurement) 
Solution 

Measuring Hot Chocolate (fractions, problem solving and reasoning) 
Solution 

Great Garlands (patterns) 
Solution 

Football Frenzy (problem solving and reasoning, arithmetic) 
Solution 

Pumpkin Puzzler (estimation, arithmetic, fractions) 
Solution 

Turning the Tables (data collection and analysis, geometry) 
Solution 

Everyone's Playing Basketball (time, problem solving and reasoning) 
Solution 

Puzzling Prices (money, patterns) 
Solution 

Painting Tiles (geometry, systematic counting) 
Solution 

How Big Was the Cat? (measurement) 
Solution 

Coloring Tetras with Two Colors (systematic counting, patterns) 
Solution 

Tiles and Sides (geometry, data collection and analysis) 
Solution 

Patterns in Squares (geometry) 
Solution 

No Pegs Allowed (geometrytriangles, geoboards) 
Solution 

Nets and Polyhedra (geometry, patterns) 
Solution 

ThreeWay Sharing (systematic counting, problem solving and reasoning) 
Solution 

Stair Skipping (patterns, arithmetic) 
Solution 

Which Graph Is Which? (graphs, data analysis) 
Solution 

What Can You Measure? (measurement, data collection and analysis, systematic counting) 
Solution 

Marbles (problem solving and reasoning) 
Solution 

The Mathematics of Motion (geometry, spatial sense) 
Solution 

Fair Share (geometrygeoboards, congruence) 
Solution 

The Talking Club (patterns, systematic counting) 
Solution 

How Many Towers? (patterns, systematic counting) 
Solution 

Darts, Anyone? (problem solving and reasoning, arithmetic) 
Solution 

Orange Game (arithmetic, exponential growth, geometry) 
Solution 

Counting Cubes (skip counting, division, multiplication) 
Solution 

What Shapes Can You Make? (geometry) 
Solution 

Take Two: Fair or Unfair? (probability, problem solving and reasoning) 
Solution 
