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Teaching with CAS in a time of transition

- Kendal, Margaret, Stacey, Kaye, Pierce, Robyn

**Authors:**Kendal, Margaret , Stacey, Kaye , Pierce, Robyn**Date:**2002**Type:**Text , Journal article**Relation:**International Journal of Computer Algebra in Mathematics Education Vol. 9, no. 2 (2002), p. 113-128**Full Text:****Reviewed:****Description:**Integrating a powerful instrument such as CAS into teaching and learning mathematics requires changes to many aspects of the classroom, which teachers will make from the base of their prior teaching styles and their beliefs about mathematics and how it should be taught. The paper describes the different ways in which two pioneering Australian teachers adapted their teaching to use CAS. One teacher used CAS with the primary goal of increasing understanding but restricted students’ use. The other teacher adopted CAS as an extra technique for solving standard problems, emphasising timesaving routines by hand and with CAS. Through these case studies we comment on the following issues related to teaching with CAS: different ways of organising the classroom, variety in approaches to teaching the use of CAS, the increased range of methods for solving problems and for teaching, the contrast between using of graphics calculators and CAS, the challenge of finding the place of by-hand skills and CAS use, and the curriculum and assessment changes required in schools.**Description:**C1**Description:**2003000120

**Authors:**Kendal, Margaret , Stacey, Kaye , Pierce, Robyn**Date:**2002**Type:**Text , Journal article**Relation:**International Journal of Computer Algebra in Mathematics Education Vol. 9, no. 2 (2002), p. 113-128**Full Text:****Reviewed:****Description:**Integrating a powerful instrument such as CAS into teaching and learning mathematics requires changes to many aspects of the classroom, which teachers will make from the base of their prior teaching styles and their beliefs about mathematics and how it should be taught. The paper describes the different ways in which two pioneering Australian teachers adapted their teaching to use CAS. One teacher used CAS with the primary goal of increasing understanding but restricted students’ use. The other teacher adopted CAS as an extra technique for solving standard problems, emphasising timesaving routines by hand and with CAS. Through these case studies we comment on the following issues related to teaching with CAS: different ways of organising the classroom, variety in approaches to teaching the use of CAS, the increased range of methods for solving problems and for teaching, the contrast between using of graphics calculators and CAS, the challenge of finding the place of by-hand skills and CAS use, and the curriculum and assessment changes required in schools.**Description:**C1**Description:**2003000120

A problem of modal control in a linear neutral system

- Ivanov, Anatoli, Khusainov, D. Ya

**Authors:**Ivanov, Anatoli , Khusainov, D. Ya**Date:**2001**Type:**Text , Journal article**Relation:**Dynamics of Continuous, Discrete and Impulsive Systems Series B: Application and Algorithm Vol. 8, no. 3 (2001), p. 395-404**Full Text:**false**Reviewed:****Description:**A problem of modal control is considered for a class of linear multidimensional differential delay systems of neutral type. The control vector is sought in the form that results in a given in advance characteristic equation of the closed system. The problem is completely solved for systems of a special form, the so-called canonical systems. A two-dimensional example is considered in full detail.

Dynamics of positive multiconvex relations

- Vladimirov, Alexander, Rubinov, Alex

**Authors:**Vladimirov, Alexander , Rubinov, Alex**Date:**2001**Type:**Text , Journal article**Relation:**Journal of Convex Analysis Vol. 8, no. 2 (2001), p. 387-399**Full Text:**false**Reviewed:****Description:**A notion of multiconvex relation as a union of a finite number of convex relations is introduced. For a particular case of multiconvex process, that is, a union of a finite set of convex processes, we define the notions of the joint and the generalized spectral radius in the same manner as for matrices. We prove the equivalence of these two values if all component processes are positive, bounded, and closed. © Heldermann Verlag.

Typical behaviour in scalar delay differential equations

- Ivanov, Anatoli, Dzalilov, Zari, Rubinov, Alex

**Authors:**Ivanov, Anatoli , Dzalilov, Zari , Rubinov, Alex**Date:**2001**Type:**Text , Journal article**Relation:**Studies of University of Zilina, Mathematical series Vol. 14 , no. 1 (2001), p. 1-10**Full Text:**false**Reviewed:****Description:**C1**Description:**2003002564

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