Saturday, December 6, 2014

Problem Solving Palooza- Challenge #3

Number Clue Puzzlers

Grade Level: This activity is suitable for students in grades 3 - 6. However, second graders should be able to complete the first puzzler. 

Objective: Determine the mystery number

Task: Write down the numbers 0-9. Read each clue. Use the clues to eliminate numbers until the mystery number is found. 

Ways to Utilize the Activity: This is a great starter activity that emphasizes important math terms. Display this on your projector for optimal quality and allow students to determine the mystery number. Then, as a class, discuss ways to approach the task. Ask questions such as: 
  • How do you determine what numbers to eliminate with each new clue? 
  • What is another way to say, "not an odd number"?
  • What does it mean to be "more than" or "less than" a number? Is the endpoint included or not included? Explain. 
  • What does it mean to be between two numbers? Are the endpoints included? Explain. 
  • What vocabulary do you need to know to eliminate numbers after reading this clue? (indicate a specific clue)

This number puzzler can be included on a math menu or used on a menu of problem solving station options. 

Solutions: Puzzler 1 = 6, Puzzle 2 = 7, Puzzle 3 = 4

Challenge: Have students create their own puzzlers. Increase the challenge by giving students the mystery number in advance and having them develop a puzzler to arrive at the mystery number. 

Note: You can download this freebie here.