In the present time, technology can be found everywhere, including in classrooms. The integration of technology within the teaching and learning of any subject, specifically teaching Mathematics, has become a very critical issue. It is a well-known fact that many school students have a phobia of Mathematics. Several publications addressed the issue and proposed different ideas to overcome the phobia with the help of technology or strategies. But a large number of schools (government or government-aided schools in west Bengal, India) do not have the requisite minimum infrastructure to fulfill the technical requirements in each classroom. Therefore, it is quite challenging for teachers to achieve mastery of learning in the classrooms with the help of technology. Therefore, reviewing the non-technical activity-based strategies again in the present scenario becomes essential. The present paper will explore different strategies for supplementing school infrastructural limitations. The paper will try to propose activity-based strategies for achieving mastery learning in Mathematics classrooms. The strategies will be applied to some school students to study the effect on them.