Post-test van Hiele levels did not differ significantly between the Geometer's Sketchpad group and the traditional instruction group on any angle concept¶
Claim · All claims
Evidence · 1 study · causalr1·q2
Currency · newest study 2013 · not yet checked against its sources · not reviewed by a person
Subclaims¶
Reading the evidence codes
q is the design tier, i the impact, n the sample, and the kind with its r
the rigour judged within that kind: what each code means.
This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q2 i? Independent samples t-tests found no significant difference between experimental and control groups on posttest 1 (p = .94), posttest 2 (p = .49), or posttest 3 (p = 0.33). → Poh Geik Tieng & Leong Kwan Eu 2013
Evidence¶
Poh Geik Tieng & Leong Kwan Eu 2013¶
Poh Geik Tieng & Leong Kwan Eu. (2013). Improving Students' Van Hiele Level Of Geometric Thinking Using Geometer's Sketchpad. The Malaysian Online Journal of Educational Technology, 2(3). www.mojet.net. https://eric.ed.gov/?id=EJ1086363
q2 · i? · causal · r1
Independent samples t-tests comparing groups after intervention (n = 16 experimental, n = 15 control). Posttest 3: t(14) = 1.00, p = 0.33, effect size 0.07; posttest 1: t(29) = -0.08, p = .94; posttest 2: t(29) = 0.70, p = .49. No effect sizes above small were reported.
"the mean van Hiele level of geometric thinking of the students in the experimental group (M = 2.00, SD = 0.00) was not significantly different than the mean van Hiele's level of geometric thinking of the students in the control group (M = 1.93, SD = 0.26), t (14) = 1.00, p = 0.33"
Discussion¶
Learner Variables¶
- Geometric Reasoning — outcome: instruction changes it
Related Claims¶
- Year Three students taught angles with Geometer's Sketchpad improved significantly in van Hiele level of geometric thinking from pretest to posttest on all three angle concepts — related
- Traditional chalk-and-talk instruction also produced significant pre-to-post gains in van Hiele level of geometric thinking on all three angle concepts — related
- The two groups were equivalent in van Hiele level at pretest except for obtuse angles, where the control group scored significantly higher before instruction — related
- Within the experimental group, van Hiele levels differed significantly across the three posttests, increasing from right to acute to obtuse angle tests — related
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