Not only children but also adolescents and adults encounter great difficulties in learning to reason proportionally. Despite these difficulties, research increasingly shows that proportional reasoning emerges early, before it is being instructed in school. There have however been very few attempts to stimulate this early emerging ability. The aim…

The aim of this study was to improve the 2nd- and 3rd-graders' conceptual subitizing skills by using in-class activities, and to examine whether the practice affects the students' basic number processing skills, calculation performance and overall mathematics achievement in the long run. The training was carried out for eight weeks (640 min in…

The purpose of this study was to investigate second-grade students' ("N" = 128) rhythm-reading achievement and retention after 5 or 10 min of weekly instruction for 3 weeks. Eight intact classes were placed into two groups. Group 1 received 5 min of rhythm-reading instruction during weekly music class, whereas Group 2 received 10 min of…

This study was intended to assess the effect of a psychoeducational computer-assisted and paper-and-pencil training designed to empower visuospatial skills in students attending the second grade of the primary school. At pretest, posttest and at the subsequent 3-months follow-up, 44 Italian second graders were presented with a battery of tests…

The purpose of this study was to investigate the effect of a morphological awareness intervention on the spelling and writing of second-grade (n = 16) and third-grade (n = 10) students at risk for learning disabilities. The intervention was provided for 25 min per session 4 to 5 times per week for 5 weeks. Students were randomly assigned to the…

The aim of the study was to examine the improvement of basic science process skills among second graders in science learning through an inquiry-based approach. The participants were 23 students from a second graders class. Participants were with the age around seven years old. The 5E model of inquiry-based approach was used to teach science. Mixed…

The number of opportunities to respond (OTR) and spacing (massed or distributed practice) of practice sessions are important variables to consider in instructional design. The purpose of this pilot study was to compare the impact of these variables on trajectories of mathematics fluency. Second- and third-grade students (N = 112) were randomly…

Repeated reading (RR) is a common fluency intervention, but recent studies comparing RR to continuous reading (CR; i.e., wide reading) found no significant differences in effects. This prompts the question of whether the mechanism that improves skills is repeatedly reading portions of connected text, or simply reading connected text. The current…

This study's purpose was to investigate effects of 3 intervention approaches for building working memory (WM) and improving word-problem solving (WPS). Children with mathematics difficulties (n = 240; 7.51 years [SD = 0.33]) were randomized to 4 conditions: a control group, general WM training with contiguous math practice, WPS intervention…

This study aimed to examine the effects of educational films on the second-grade elementary school teacher candidates' attitudes and awareness towards environmental problems. In this study, two pre-existing groups were randomly assigned to experimental and control groups, so the study was designed according to the pre-test post-test control group…

Number system knowledge (NSK) is broadly defined as the understanding of number relationships and is an essential mathematics skill for young elementary school-aged students. NSK instruction that emphasizes connections between number sense and spatial reasoning could be a critical anchor for second-grade students to stay rooted in their conceptual…

The purpose of this study was to assess the effectiveness of explicit instruction, compared to constructivist instruction, in teaching subtraction in schools with a high concentration of students from a disadvantaged social background: eighty-seven second graders (mean age in months = 90.95, SD = 5.30). Two groups received explicit versus…

Elementary school students struggle in interpreting the equal sign as a symbol denoting equivalence. Although many have advocated using a pan-balance scale to help students develop this understanding, less is known about what features associated with this model support learning. To attempt to control and examine these features, the investigators…

Purpose: This study investigated the classification accuracy of a concentrated English narrative dynamic assessment (DA) for identifying language impairment (LI). Method: Forty-two Spanish-English bilingual kindergarten to third-grade children (10 LI and 32 with no LI) were administered two 25-min DA test-teach-test sessions. Pre- and posttest…

The self-teaching hypothesis posits that enduring orthographic and phonological representations are produced when children independently recode print into speech. However, very little research has examined how children self-teach when initial decoding attempts are weak or ineffective. In this within-participant design, 25 students in Grade 2…