General Analysis of Cutting Styles Basically, I analyze a jigsaw puzzle from five perspectives: the interlocking nature of the puzzle, the shape of the knobs (assuming it has knobs), the contour of the lines between knobs (or from piece to piece), the overall pattern created, and special techniques. Interlocking.
Full Answer
What makes a jigsaw puzzle interesting?
Special techniques clearly make a puzzle interesting, usually "the more, the better." The frequently used techniques of color-line cutting ( clc) and figurals ( figs) significantly increase the value of a puzzle and merit separate classifications by themselves.
What are the puzzle-guide conditions for matching?
There were three puzzle-guide conditions, selected so the match could be: only made on the basis of color; only on the basis of pictorial content (removing the color from the guide); or on the basis of both.
Do jigsaw puzzles draw on metarepresentational understanding?
This relatively blunt measure supports the hypothesis that the use of pictorial information when completing jigsaw puzzles draws on metarepresentational understanding. Completion time and the number of attempts to connect pieces provide graded measures of efficiency.
How does age affect the ability to complete jigsaw puzzles?
In Experiment 1, we found that the ability to complete jigsaw puzzles containing pictorial information improved between 3- and 5 years and was associated with mental and graphical metarepresentational ability, measured by the False Belief and False Sign tasks.
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What is the relationship between a jigsaw puzzle and a completed picture?
The relation between guide and completed picture is one of geometrical correspondence.
What are the three puzzle-guide conditions?
There were three puzzle-guide conditions, selected so the match could be: only made on the basis of color; only on the basis of pictorial content (removing the color from the guide); or on the basis of both. Thus conditions were as follows: (a) color (a puzzle with each piece a different color , and corresponding guide); (b) outline (e.g., a colored car puzzle, and a line-drawing car on the guide ); and (c) normal (e.g. , colored tree puzzle and colored tree on guide).
What is the False Belief task?
The False Belief task is a widely used measure of mental metarepresentation, and as discussed has been shown to have substantial associations with measures of linguistic metarepresentation and, in the form of ambiguous figures, pictorial metarepresentation. The False Sign task (Parkin, 1994; Parkin & Perner, 1996) can be considered a test of graphic metarepresentation. It may be a particularly appropriate comparator task for use of the guide, in the sense that both are physical representations that indicate something about how the world should be: where the princess should be, or how the finished jigsaw puzzle should appear.
What is a jigsaw puzzle?
Jigsaw puzzles are ubiquitous developmental toys in Western societies, used here to examine the development of metarepresentation. For jigsaw puzzles this entails understanding that individual pieces, when assembled, produce a picture. In Experiment 1, 3- to 5-year-olds ( N = 117) completed jigsaw puzzles that were normal, had no picture, or comprised noninterlocking rectangular pieces. Pictorial puzzle completion was associated with mental and graphical metarepresentational task performance. Guide pictures of completed pictorial puzzles were not useful. In Experiment 2, 3- to 4-year-olds ( N = 52) completed a simplified task, to choose the correct final piece. Guide-use associated with age and specifically graphical metarepresentation performance. We conclude that the pragmatically natural measure of jigsaw puzzle completion ability demonstrates general and pictorial metarepresentational development at 4 years.
How many trials were there in the jigsaw puzzle?
There were two trials each of three different jigsaw puzzle types. See Figure 4. All were four-piece jigsaw puzzles with one-piece missing. Each puzzle had a guide. There were three candidate pieces shaped to fit in the empty position. One completed the picture shown in the guide; one formed a satisfactory picture, but differed from that shown in the guide; one was unsuitable. The unsuitable pieces were, for the Normal and Outline jigsaw puzzles part of one of the other pictures, but rotated clockwise through 90°, and for the Color puzzles an uncolored (i.e., white) piece. The guides for the Normal and Color puzzles were identical to the final image. The guide for the Outline puzzle was a monochrome outline otherwise identical to the color puzzle image. Each picture jigsaw puzzle featured in either the normal guide or outline guide trials, randomized between children.
How long does it take to complete a jigsaw puzzle?
Extensive piloting with sixty-eight 3- to 5-year-olds showed that all could complete a normal six-piece puzzle within 3 min. We set this as the maximum time for each puzzle to avoid fatigue effects. However, as many younger children proved unable to complete the harder shape-cue or picture-cue puzzles within this time, we use two additional measures: dichotomous ability to complete the jigsaw puzzle within the time limit, and the number of times children attempted to join puzzle pieces.
How long does it take to understand representation?
Metarepresentational ability, the understanding of the relation between a representational medium and its referent, has been argued to develop around 4 years (Doherty, 2009; Wellman, 1990; Wellman, Cross, & Watson, 2001; Wimmer & Perner, 1983 ). This has been widely studied using the False Belief task. This demonstrates understanding that action is guided by mental states which represent external situations, and can misrepresent them (Wellman, 1990; Wimmer & Perner, 1983 ). Substantial research evidence has accumulated indicating comparable developments in understanding the representational nature of language occur around the same time. Children understand that objects can take alternative names, bunny and rabbit, or rabbit and animal, for example, around 4 years, and this understanding is associated with false belief understanding (Doherty & Perner, 1998; Perner, Stummer, Sprung, & Doherty, 2002 ). Similar developments have been shown in the ability to select objects as the referents of novel names (Gollek & Doherty, 2016; Karadaki & Doherty, 2017 ). These associations suggest that preschool children are developing a general concept of representation, applicable across multiple representational domains.
What are the techniques used to make a puzzle interesting?
The frequently used techniques of color-line cutting ( clc) and figurals ( figs) significantly increase the value of a puzzle and merit separate classifications by themselves.
Why did the maker hand cut the puzzle?
Probably its because thats the easiest and least imaginative way to cut a puzzle and reflects the makers objective to produce one as quickly as possible. Straus and Victory puzzles are notorious for this.
What is the difference between interlocking and non-interlocking puzzles?
Interlocking. A puzzle is interlocking when most of it can be pulled along the table by a corner; it is semi-interlocking when only smaller sections slide together along the table; and non-interlocking when only the pieces touched will move. The term push-fit ( p-f) is a synonym for non-interlocking and is most commonly used for describing (but not limited to) 1909 era puzzles. [3]
What is a multiple layer puzzle?
multiple layer puzzles (sections of same or another picture cut and glued onto base puzzle)
What is the importance of figurals in puzzles?
1b, 2d, 2f, and 3c). Generally the greater the number, the higher the market value (although figurals will make a puzzle easier to assemble). But serious collectors are also interested in whether the figurals are:
What is elaborate level of classification?
A truly elaborate level of classification adds a Comments category, to include further detail on the figurals and special techniques as outlined above. These comments will focus attention on a collections well cut puzzles, and ensure their value.
What is a trick edge?
trick edges (two edge pieces which interlock only with an inside piece) inside (false) edges and corners (inside pieces cut to resemble edge or corner pieces) split corners (cut line starts at corner) split knobs (cut line goes through middle of knobs)