An evaluation of selected teaching aids for plane geometry



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The purpose of this study was (1) to make a survey of teaching aids being used in the teaching of plane geometry; (2) to describe these aids according to their construction and application; and (3) to evaluate these aids as effective and practical means of instruction. The last of the three objectives was of primary importance in the study. [...] One hundred twenty-one teaching aids were selected from aids obtained from questionnaires, literature, and personal interviews. Criteria for evaluation were developed to rate each of these aids individually. The evaluation was performed by a jury of experts [...] The aids were rated as (1) learning aids, (2) instructional aids, and (3) practical aids. An illustration and description were prepared for each aid, and these were accompanied by the evaluative data.



Geometry--Study and teaching--Audio-visual aids