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TME(2021) Vol 2, No. 1, pp 47-62

A Tri-Lens Approach for Unpacking Teachers’ Design of Instructional Materials CHIN Sze Looi, CHOY Ban Heng, and LEONG Yew Hoong National Institute of Education Nanyang Technological University Singapore Published in The Mathematician Educator, 2021, Vol 2, No. 1, pp 47-62. Abstract Teacher-designed notes and worksheets are common instructional materials used in Singapore mathematics classrooms that …

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TME(2021) Vol 2, No. 1, pp 33-46

A Listing Approach for Counting Problems NG Wai Kuen, and LEONG Yew Hoong Nanyang Polytechnic Singapore National Institute of Education Nanyang Technological University Singapore Published in The Mathematician Educator, 2021, Vol 2, No. 1, pp 33-46. Abstract It is well-known that Counting Problems are difficult for many students. Mistakes such as the wrong use of …

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TME(2021) Vol 2, No. 1, pp 11-32

Visualising Infinite Sums as a Study in Shifts of Attention John MASON Open University & University of Oxford United Kingdom Published in The Mathematician Educator, 2021, Vol 2, No. 1, pp 11-32. Abstract A method of depicting the sum of finite and infinite geometric progressions with ratio at most 1/2 is extended in various ways …

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TME(2021) Vol 2, No. 1, pp 1-10

Fallacies about the Derivative of the Trigonometric Sine Function TOH Tin Lam, TAY Eng Guan, and TONG Cherng Luen National Institute of Education Nanyang Technological University Singapore Published in The Mathematician Educator, 2021, Vol 2, No. 1, pp 1-10. Abstract In this paper, several fallacies about the extension of the formula $\frac{d}{dx} (\sin x) = …

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