1. Dudley’s Silhouette Puzzles
Rules to the Clues

2. Essential Questions What is Convergent Thinking? Lesson Questions:
How can we solve problems using logical reasoning?
How can I use critical thinking skills of analysis and observation to help me find one correct answer?
How can I use critical thinking skills to show deductive reasoning?

3. Gifted Standards and Elements
Standard: Students will reason logically using induction and deduction.
a. Solve problems using logical reasoning.
b. Support opinions, theories, conjectures, and conclusions with logical reasoning.
c. Analyze logic to determine if it sufficiently supports opinions, theories, conjectures, and conclusions.

4. Convergent Thinking Song (sing to the tune of Old MacDonald)
Gather Facts to Find One Answer
Like 2 plus 2 is 4
Convergent Thinking is so fun
We use it more and more!
With an observation here,
And an Explanation there,
Collaborate, Communicate,
We’re on our way to thinking great!
Convergent Thinking is so fun,
All clues will lead to one… Right answer!

5. Old Macdonald music Old Macdonald Electric Piano Version
Old Macdonald Rock Version
Old Macdonald Country Version
Old Macdonald Band Version

6. Convergent Thinking
Click on the words for a Prezi link for convergent thinking

7. Dudley’s Silhouettes

8. 1. If the box is shaded, it indicates the silhouette designated DOES go in that spot.

9. 2. If the designated silhouette has a line through it, similar to the “no” symbol then that silhouette does NOT go in the shaded space.

10. 3. If only a shape is shown, then one of the silhouettes of that shape goes in the shaded square, but you may have to wait to determine which one.

11. 4. If more than one square is shaded for a particular clue, then you have to choose (by using some of the other clues) which shaded square is the correct spot for the silhouette in question.

12. 5. If there is a selection of boxes and the designated silhouette has a line through it, then that silhouette will not go in ANY of the shaded squares.

13. 6. If there is already a silhouette shown in place on one of the clues, that silhouette’s location must be determined before the designated silhouette can be established. Knowing the placement of the first silhouette is part of the clue to where the other silhouettes will go.
This rule applies to puzzles 4, 5, and 6.

14. 1. If the box is shaded, it indicates the silhouette designated DOES go in that spot If the designated silhouette has a line through it, similar to the “no” symbol then that silhouette does NOT go in the shaded space If only a shape is shown, then one of the silhouettes of that shape goes in the shaded square, but you may have to wait to determine which one If more than one square is shaded for a particular clue, then the students have to choose (by using some of the other clues) which shaded square is the correct spot for the silhouette in question If there is a selection of boxes and the designated silhouette has a line through it, then that silhouette will not go in ANY of the shaded squares If there is already a silhouette shown in place on one of the clues, that silhouette’s location must be determined before the designated silhouette can be established. Knowing the placement of the first silhouette is part of the clue to where the other silhouette goes.

16. Remember all of Dudley’s Rules to solve the Silhouette PUzzles