Students entered the Integral Calculus experiment with near-zero pretest scores, indicating weak prerequisite preparation¶

Claim · All claims
Evidence · 1 study · causal r1 · q2
Currency · newest study 2015 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Pretest mean scores were 0.33 (control) and 0.29 (experimental), both a failing grade equivalent of 5.0, with 100% failure in both groups. → Salazar 2015

Evidence¶

Salazar 2015¶

Salazar, D. A. (2015). Razalas' Grouping Method and Mathematics Achievement. Journal of Education and Practice, Vol.6, No.8. https://eric.ed.gov/?id=EJ1082724

q2 · i? · causal · r1

Pretest analysis of the two intact classes (n=9 control, n=21 experimental after excluding 13 female students for cultural reasons) showed nearly all students scored zero; the author attributes this to weak algebra and differential calculus background.

"both groups (control and experimental) have a mean score in the pretest is 0.33 and 0.29 respectively with a grade equivalent of 5.0, a failure grade. 100% of the students in the control group failed."

Discussion¶

Related Claims¶

• Students taught with Razalas' Method of Grouping achieved significantly higher gain scores than students in Individual Learning in Integral Calculus — related
• The experimental and control groups did not differ significantly on the pre test — related
• Both groups improved significantly from pretest to posttest, and the experimental group's posttest scores significantly exceeded the control group's — related
• First-year students taught Calculus with Microsoft Mathematics achieved higher post-test scores than students taught conventionally — related