Prompting people to estimate climate change numbers before showing them the true value can shift learners' attitudes and conceptions. Yet, interventions created for such a learning experience are not easily accessible to the general public. The purpose of this preregistered study was to address this research gap by developing and testing an openly…

This research report summarises the results of an exploratory teaching program in a primary and secondary school in rural New South Wales, Australia, focused on improving basic mathematics skills. Pupils, aged 11 to 13 years, identified as consistently low-achieving in Mathematics were targeted. The program ran for approximately twenty-five weeks…

Described are the rationale, development and utility with mentally retarded children of the Peabody Mathematics Readiness Test (PMRT), an instrument designed to assess mathematical readiness of normal first graders and identify children who would experience difficulty with first grade mathematics. It is explained that the PMRT was intended to…

The effects of two curricula for teaching number concepts to kindergarten children: a part-part-whole (PPW) curriculum emphasizing set-subset relationships between cardinal numbers, and a count/say/write (CSW) standard curriculum were composed. The concept of number attained by children taught with these two curricula was compared to that of…

Instructional units on time and money were presented to 249 educable and trainable level mentally retarded children. Pretesting showed that Ss had a poorer understanding of time and money concepts than 229 nonretarded controls of the same MA. Significant performance increases from pretest to posttest resulted in the retardates' posttest scores…

The efficacy of an early mathematics program aimed at developing number sense and built entirely on children's invented procedures and on their informally acquired quantitative knowledge was studied. To socialize children to think of themselves as reasoners about numbers, the classroom program routinely provided daily conversation about numbers…

Two field trials were conducted to test the effectiveness of instructional materials, which were presented on an Apple II Plus microcomputer interfaced with a videocassette recorder, in teaching mathematical skills to students who had not made normal progress in mathematics learning. In the first field trial, 58 experimental students from a high…