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Version 1.1 – Updated August 2021

# Mathematics problem solving

## Overview

• Influence: Mathematics problem solving
• Domain: Curricula
• Sub-Domain: Math and sciences
• Potential to Accelerate Student Achievement: Potential to considerably accelerate
• Influence Definition: The teaching of mathematic problem solving

## Evidence

• Number of meta-analyses: 3
• Number of studies: 79
• Number of students: 16,406
• Number of effects: 82
• Effect size: 1.16

## Meta-Analyses

Meta-Analyses
Journal Title Author First Author's Country Article Name Year Published Variable Number of Studies Number of Students Number of Effects Effect Size
Unpublished Thesis Lein USA Effectiveness of Mathematical Word Problem Solving Interventions for Students with Learning Disabilities and Mathematics Difficulties: A Meta-Analysis 2016 Word problem solving interventions in math 28 0 31 1.03
The Journal of Educational Research Zhang & Xin A follow-up meta-analysis for word-problem-solving interventions for students with mathematics difficulties. 2012 Word problem solving interventions in math 39 0 39 1.85
International Journal of Human Sciences Kaplan, Duran, Doruk, & Ozturk Turkey Effects of instruction based on realistic mathematics education on mathematics achievement: A meta-analysis study. 2015 Realistic mathematics 12 16,406 12 0.61
TOTAL/AVERAGE 79 16,406 82 1.16

## Confidence

The Confidence is the average of these four measures, each divided into five approximately equal groups and assigned a value from 1 to 5 based on the following criteria:

• Number of Meta-analyses
• 1 = 1
• 2 = 2–3
• 3 = 4–6
• 4 = 7–9
• 5 = 10+
• Number of Studies
• 1 = 1–10
• 2 = 11–50
• 3 = 51–200
• 4 = 201–400
• 5 = 400+
• Number of Students
• 1 = 1–2,500
• 2 = 2,501–10,000
• 3 = 10,000–20,000
• 4 = 20,000–100,000
• 5 = 100,001+
• Number of Effects
• 1 = 1–100
• 2 = 101–300
• 3 = 301–600
• 4 = 601–1,200
• 5 = 1,200+
Confidences
Number of Meta-Analyses Number of Studies Number of Students Number of Effects Overall Confidence
Confidence Factor 2 3 3 1 2