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Tooth Eruption/Cognitive Development/Arithmetic Computation, Joseph August Baust Sr.

Doctoral Dissertations

The problem of the study was to investigate whether readiness for beginning formal arithmetic, typified by the types of skills required by arithmetic computation, or the Conservation of Number could be predicted by the eruption of the permanent incisors, chronological age, or the combination of chronological age and tooth age.

Sixty-six children were randomly selected for the testing so that there were 33 boys and 33 girls in the sample. The children were first grade, middle-class, Caucasoids from Knoxville, Tennessee. The chronological age of each child was computed in months, and each child had his teeth photographed to check for …