Traditional chalk-and-talk instruction also produced significant pre-to-post gains in van Hiele level of geometric thinking on all three angle concepts¶
Claim · All claims
Evidence · 1 study · causalr2·q2·i2medium
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 i2 The control group improved significantly on right angles (effect size 0.37), acute angles (0.62), and obtuse angles (0.65) after traditional instruction. → 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 · i2 · causal · r2
Paired samples t-tests for the control group (n = 15) taught by traditional method. Obtuse angles: t(14) = 5.12, p < 0.01, "The effect size is 0.65"; acute angles t(14) = 4.80, effect size 0.62; right angles t(14) = 2.87, p = .01, effect size 0.37.
"They improved significantly after the teaching of obtuse angles using traditional approach in posttest 3 ( M = 1.93, SD = 0.26), t (14) = 5.12, p< 0.01. The effect size is 0.65."
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
- Students' ICT literacy showed no significant correlation with their van Hiele level of geometric thinking after Geometer's Sketchpad instruction — related
- Post-test van Hiele levels did not differ significantly between the Geometer's Sketchpad group and the traditional instruction group on any angle concept — 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
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