Abstract The aim of the present study is to explore strategies in enumerating units three dimensional (3D) arrays. We analyse enumeration students grade 3 (ages 8 9) situations cubical and spherical representations 3D By exploring students’ these two situations, we find that difficulties arrays can be traced units-locating, with consequence applying double triple counting. Our results also indi...

the available experiments and reports of executed projects in iranian research centers and universities show that the ability of know-how development of chemical and petrochemical synthesis as well as their required catalyst is existed in laboratory scale. although, know-how development in larger scale is possible, too but no certain scientific and classified method has been explained which is ...

Core vocabulary items (e.g. thing, way) are often viewed as the enemy of effective academic writing, and style guides textbooks advise against using them. However, their bad reputation seems to stem from a single-word perspective that ignores rich phraseological units such tend figure in. In this study, we focus on core lemma thing investigate extent which approach can redeem its reputation. We...

Abstract The study aims to determine the efficiency of undergraduate courses associated with a Brazilian Federal University contributing discussion about performance evaluation models in context Higher Education. Data envelopment analysis (DEA) is used obtain indexes that reflect ability add knowledge students during academic training period. Therefore, DEA-BCC model applied two different scena...