THE DEVELOPMENT OF MATHEMATIC PROBLEM SOLVING ABILITY ON THE SEQUENCE AND SERIES USING THE PROBLEM-SOLVING PROCESS BASED ON THE CONCEPT OF GEORGE POLYA FOR GRADE 11 STUDENTS DEMONSTRATION SCHOOL OF SUAN SUNANDHA RAJABHAT UNIVERSITY BY ONLINE SYSTEM

Alongkot  Wongsriya

Alongkot Wongsriya Demonstration School of Suan Sunandha Rajabhat University,1-U-thong Nok, Dusit, Bangkok Thailand,10300

Keywords: Problem Solving Ability, Mathematic Problem, Problem – Solving Process Based on The concept of George Pólya

Abstract

The purpose of this research was to develop the ability to solve mathematical problems on sequences and series by using the problem-solving process based on the concept of George Pólya for grade 11 student demonstration school of suan sunandha rajabhat university by online system. The sample is a group of 17 students in the medical aptitude program for grade 11 demonstration school of suan sunandha rajabhat university academic year 2021. The research instruments were 3 lesson plans and an online mathematical problem solving ability test. The statistics used in data analysis were mean(X), percentage(%), standard deviation(..)SD. Comparison of scores on problem solving ability with mathematics achievement level according to the criteria of road map for mathematics demonstration school of suan sunandha rajabhat university, 70%.
The results showed that after learning, the students had the ability to solve mathematical problems on sequence and series by using the problem-solving process based on the concept of George Pólya through an online system 7 students higher than 70% (41.18%), 8 students (47.06%) higher than 50% but less than 70%, and 2 students less than 50% (11.76%).