Module is a unit of work in a course of instruction that is virtually self-contained and a method of teaching that is based on the building up skills and knowledge in discrete units.  Module  is  self-instructional  package;  it  enables  the  learner  to  learn  independently.  The aim of this study was to investigate the effectiveness of modular approach in teaching matter and change in its states in general science for elementary classes. The major objectives of the  study  were  (i)  to  determine  the  role  of  modular  teaching  in  the  academic  achievement of students of science at elementary  level, (ii) to find out whether the modular  teaching  is  more  effective  than  traditional  methods.  Study design was pre-test and post-test. All class 5th elementary school students studying general science subject were constitute the population of the study. 40 Students of class 5th studying in general science subject from Govt. Girls Primary School Ziarat Kaka Sahib No. 1 were served as sample of the study.  Pre-test  and  post-test  were  used  as  research instrument  and  data  was  collected  through  pre-test  and  post-test.  Collected data was analyzed and interpreted using T-test through SPSS. The analysis of the collected data revealed the following findings. Treatment of modular approach had great effect on experimental group and its academic achievement was better than that of control group. Teaching of G. Science through modular approach was more effective than traditional teaching approach. The study testified a collection of positive outcomes during application of modular approach. Therefore, elementary school teachers may use modular approach in science to improve the academic achievement of students. It is recommended that teachers may be recognized high level of communication through questioning as it endorses participation enhances learning and inspires students. It is recommended that teachers and students should follow modular approach to get maximum benefits from this innovation. Teachers training institutes may make modular approach as a part of their curriculum content and teacher educators may be trained in different model of modular approaches.

The study purpose is to investigate the effect of Bar Model Visualization Technique on the word problem solving skills of elementary level students in mathematics. Following were the objectives of the study (i) to investigate the effect of Bar Model Visualization Technique on addition word problems-solving skills; (ii) to investigate the effect of Bar Model Visualization Technique on subtraction word problems solving skills; (iii) to investigate the effect of Bar Model Visualization Technique on multiplication word problems solving skills; (iv) to investigate the effect of Bar Model Visualization Technique on division word problems solving skills. The null hypotheses were designed to test the objectives as (i) there is no significant effect of Bar Model Visualization Technique on addition word problem solving skills; (ii) there is no significant effect of Bar Model Visualization Technique on subtraction word problem solving skills; (iii) there is no significant effect of Bar Model Visualization Technique on multiplication word problem solving skills; (iv) there is no significant effect of Bar Model Visualization Technique on division word problem solving skills. The nature of the study was experimental. Pre-test and post-test equivalent group design was used as a tool for data collection in this study. Sample of the study was 40 students (Male & Female) of Government Primary School No.2 Bab-e-Jadeed District Nowshera, Khyber Pakhtunkhwa. The sample students were divided on the basis of pretest scores by applying paired random technique in to experimental group and control group. Data were analyzed by mean, SD and t-test.  It was concluded that the concepts of Bar Model Visualization Technique had significant effect on addition word problems and subtraction word problems but it has not significant effect on multiplication word problems neither division word problems. The results of the study show that Bar Model Visualization Technique had significant effect on Mathematical word problem solving skills and also the learner take interest in the subject. It provides alternative method for teacher to teach mathematics subject.