Abstract

Objectives: The research aims to identify (the effect of the four educational pillars strategy on the achievement of biology among fourth year scientific students). To achieve the research objective, the null hypothesis was formulated: - There is no statistically significant difference at the level of significance (0.05) between the average achievement scores of the experimental group students who studied The strategy of the four educational pillars and the average achievement scores of the control group students who studied in the usual way in the achievement test.
Methodology: The researcher chose an experimental design with two groups (experimental and control), one with partial control over the other), and prepared an achievement test of the multiple-choice type consisting of (42) four-alternative test items, included the four (Bloom) cognitive levels (knowledge, understanding, Application, analysis, and verify its validity by presenting it to those with experience and specialization. 
Results: The study found an increase in the average achievement test scores for the group’s students. The experimental result of using the four pillars strategy compared to the level of achievement of the control group students studied in the usual way, where the arithmetic mean of the experimental group reached (28.65) with a standard deviation of (17.70) at a degree of freedom (65), while the arithmetic mean of the control group reached (25, 29) with a standard deviation of (24.25), and the calculated T-value was (4.012) and the tabulated ( 2.00) at a significance level of (0.05) and thus the null hypothesis is rejected.      
Research limits: Human limits: A sample of fourth-grade scientific students in preparatory day schools for boys. Time limits: The first semester of the academic year (2022-2023 AD). Spatial limits: Al-Warithin Preparatory School for Boys/Baghdad Education Directorate/Al-Rusafa 3. Cognitive limits: The scientific material was specified in chapters (second, third, and fourth) of the Biology book for the fourth grade, scientific edition. (11) for the year (2021 AD(.