No child left behind, nor singled out: is it possible to combine adaptive instruction and inclusive pedagogy in early math software?

The article addresses the challenge of combining adaptive and inclusive instruction in early math software, that is, to provide different kinds of support and challenges to different individuals in response to their different needs—yet avoid exposing children (whether far behind or far ahead) as being different. Arguments for adaption as well as inclusion are discussed, and an evaluative user study is conducted in which 42 3- to 6-year-old preschool children made use of a digital play-&-learn game for early math designed to combine adaptive instruction with inclusion during a period of 6 weeks. Data logging, performance measures, observations of children playing, and interviews with teachers are used to evaluate whether the adaptive and inclusive strategies worked out as intended. Results indicate that the goals of inclusion as well as the goals of adaptivity were met. A preliminary conclusion is that it is possible to combine adaptation and inclusion in early math software.

MATH SOFTWARE SEBAGAI SALAH SATU ALTERNATIF MEDIA AJAR GURU SEKOLAH TENGAH SAWAH DALAM MENGHADAPI REVOLUSI INDUSTI 4.0

Kegiatan Program Kemitraan Masyarakat (PKM) ini berlangsung selama 3 bulan memiliki tiga tujuan utama yaitu, pertama, melakukan publikasi hasil/karya tulis yang berguna menjadi acuan/referensi bagi pembaca lain dalam penggunaan software matematika (Geogebra). Kedua, menghasilkan panduan penggunaan yang dapat dijadian acuan dalam implementasi model yang diberikan. Ketiga, teratasinya berbagai masalah yang dialami mitra seperti tidak adanya kompetensi yang dimiliki guru untuk mengajarkan menggunakan software sehingga berdampak pada antusiasme siswa dalam proses pembelajaran, dampak lebih jauh tentu saja pada hasil belajar yang tidak sesuai. Berdasarkan permasalahan yang dihadapi kedua mitra dengan mitra I yaitu SMAN I Citeureup dan Mitra II yaitu SMPN 3 Citeureup, serta dicocokan dengan luaran yang diharapkan dari kegiatan, maka akan dilaksanakan kegiatan yang berjudul “Math Software Sebagai Salah Satu Alternatif Media Ajar Guru Sekolah Tengah Sawah dalam Menghadapi Revolusi Industi 4.0” dengan langkah-langkah: Penggalian masalah mitra, diskusi permasalahan yang dihadapi mitra, perencanaan solusi, sosialisasi program, pelaksaan program, evaluasi/refleksi, pembuatan laporan dan publikasi. Kegiatan Pelatihan Penggunaan Software Geogebra ini dibagi pada dua Termin. Termin pertama adalah pemberian materi mengenai pentingnya penggunaan media bahan ajar untuk meng-efektifkan pembelajaran di kelas. Termin kedua yaitu pengenalan software geogebra yang dilanjutkan dengan pelatihan penggunaan software. Kegiatan termin tersenut dilaksanakan pada tanggal 26 Januari 2019. Diketuai oleh Nurafni, M.Pd dengan tiga orang anggota lain, kegiatan ini menghasilkan luaran sebagai berikut: 1. Publikasi Artikel Ilmiah. 2. Buku Panduan Software 3. Teratasi Masalah Guru dan Siswa (tidak terampil menggunakan Media Pembelajaran Matematika).

A simple analysis of flying capacitor converter

Purpose The paper aims to emphasise how switched systems can be analysed with elementary techniques which require only undergraduate-level linear algebra and differential equations. It is also emphasised how math software can become useful for simplifying analytic complications. Design/methodology/approach The time domain voltage balance methodology is used for stability analysis. As for deriving formulas for the asymptotic average of both capacitor voltage and inductor current, a new simple analytic method is introduced. Findings It was shown analytically that the time average of capacitor voltage converges to half of the source voltage. A formula for the time average of the current of the inductor is also computed. As a by-product, it was discovered that the period of the current is half of the switching period. Numerical simulations are obtained to illustrate the accuracy of the results. Research limitations/implications Higher dimensional generalisations could become a bit complicated, as stability analysis of higher dimensional exponential matrices is not so easy to handle. On the other hand, the new discovery on the period of the current is more likely to give new insights into handling higher dimensional systems. Practical implications Analytical formulas are exact, and it helps in accurately modelling flying capacitor converts (FCCs) in practice. Originality/value FCC is well studied in engineering society. However, not much is done in obtaining closed form solutions using analysis. Also, math software is much used in computation of numerical results and obtaining simulations. In this paper, one more important aspect of math software is emphasised, namely, use symbolic and numeric computing environment Maple in analysis.

Vibration effect to the operator of feller buncher in the mode of starting from the place

Разработана модель динамической системы: «оператор – валочно- пакетирующая машина – предмет труда – дерево». Математическое описание составлено в форме уравнения Лагранжа 2-го рода. Система уравнений решена относительно деформации упругой связи сидения с корпусом машины методом Рунге–Кутта, с помощью среды программирования MathCAD. Апробация модели осуществлена на примере серийно выпускаемых валочно- пакетирующих машин ЛП-19А в режиме разгона при трогании с места. Установлено, что вибронагруженность операторов ВПМ превышает санитарные нормы в 1,8–3,6 раза. Для снижения вибронагруженности операторов целесообразно ограничивать ускорения трогания машины с места до 0,4 м/с2. In article the model of biodynamic system is developed «the operator – feller – the packaging car (feller – buncher machine) – an object of the labor – a tree». The mathematical description is worked out in the form of the equation of Lagranzha second number. The system of the equations is solved concerning elastic deformation suspension seats of the operator by a method of Runge–Kutta, by engineering math software MathCAD. Model approbation is carried out on an example of serially let out feller-packaging cars LP-19A in the dispersal mode at start-off from the place. As a result of researches it is established: vibroloading operators of feller-packaging cars exceeds the sanitary code in 1.8–3.6 times. For decrease vibroloading operators it is expedient to limit accelerations at start-off from the place to 0.4 m/s2.