Building Kindergartners' Number Sense: A Randomized Controlled Study.

Area of Science:

• Early Childhood Education
• Developmental Psychology
• Educational Interventions

Background:

• Early math achievement is crucial for later academic success.
• Number sense in kindergarten predicts elementary math performance.
• Targeted interventions can address foundational math skill gaps in at-risk preschoolers.

Purpose of the Study:

• To evaluate a small-group number sense intervention for low-income kindergartners at high risk for math difficulties.
• To compare the intervention's effectiveness against a language intervention and a control group.

Main Methods:

• Random assignment of 132 kindergartners into three groups: number sense intervention, language intervention, or control.
• Pre- and post-intervention assessments of number competencies and general math achievement.
• Follow-up assessment eight weeks after intervention completion.

Main Results:

• The number sense intervention group showed significantly better performance than the control group immediately after the intervention.
• Meaningful improvements were observed in number competencies and general math achievement.
• These positive effects on math skills were largely maintained eight weeks post-intervention.
• No significant differences were found between the language intervention and control groups on math measures.

Conclusions:

• A targeted number sense intervention is effective in improving early math skills for high-risk kindergartners.
• The intervention promotes durable learning, with sustained benefits observed after completion.
• Early numeracy interventions can mitigate math achievement gaps in vulnerable student populations.