数学的实践与认识最新文献_第3页

Prior achievement, self-efficacy, and mathematical literacy on uncertainty content and data content of XI grade senior high school students 高中11年级学生在先成就、自我效能和数学素养对不确定性内容和数据内容的影响

数学的实践与认识 Pub Date : 2022-01-01 DOI: 10.1063/5.0110215

A. Muhazir, Kana Hidayati, H. Retnawati

引用次数: 0

The effect of problem-based learning model toward students' mathematics achievement based on gender 基于性别的问题学习模式对学生数学成绩的影响

数学的实践与认识 Pub Date : 2022-01-01 DOI: 10.1063/5.0107816

Yohannes, N. Diana, Y. Sukma

引用次数: 0

Informal worker classification using classification and regression tree (CART) and non-linear support vector machine (SVM) 基于分类回归树和非线性支持向量机的非正式工人分类

数学的实践与认识 Pub Date : 2022-01-01 DOI: 10.1063/5.0109416

R. Fitriani, Y. Andriyana

引用次数: 0

Formative assessment on the flipped classroom model in the mathematics learning 翻转课堂模式在数学学习中的形成性评价

数学的实践与认识 Pub Date : 2022-01-01 DOI: 10.1063/5.0108392

P. A. Yuliani, Hartono

引用次数: 0

The role of abstraction ability in mathematical problem solving 抽象能力在数学问题解决中的作用

数学的实践与认识 Pub Date : 2022-01-01 DOI: 10.1063/5.0109166

S. Ningsih, Kana Hidayati

引用次数: 0

Solution of the SIR mathematical model with births and deaths for COVID-19 spread using microsoft excel 使用microsoft excel求解包含COVID-19传播出生和死亡的SIR数学模型

数学的实践与认识 Pub Date : 2022-01-01 DOI: 10.1063/5.0108052

D. P. W. Putra, M. A. Rudhito

{"title":"Solution of the SIR mathematical model with births and deaths for COVID-19 spread using microsoft excel","authors":"D. P. W. Putra, M. A. Rudhito","doi":"10.1063/5.0108052","DOIUrl":"https://doi.org/10.1063/5.0108052","url":null,"abstract":"This study aims to find the solution of SIR (susceptible, infectious and recovered) modelling which considers natural births and deaths for the spread of Covid-19 in.populations of an area for normal, new normal and lockdown conditions using Microsoft Excel. This research consists two stages, 1) study the numerical solution SIR model using spreadsheet of Microsoft Excel, and 2) build Microsoft Excel Applets for simulation of the system. The results show that the SIR model with consider births and deaths for spread of Covid-19 can be solved numerically by Microsoft Excel, by changing the system of differential equations into system of difference equations. Furthermore, by using existing facilities in Microsoft Excel, the Microsoft Excel Applets can be built to simulate system in normal, new normal, and lockdown conditions. The simulation shows there are 58% individual are infected in normal condition. In new normal and lockdown conditions there are respectively 28% and 6% individuals who are infected by Covid-19. Pandemic peak also can be predicted by this model. In Normal condition, pandemic peak at Seventh week. In New normal and lockdown condition, the pandemic peak occurs at eleventh ant sixth week respectively. © 2022 Author(s).","PeriodicalId":66064,"journal":{"name":"数学的实践与认识","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74331726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preface: The 4th International Seminar on Innovation in Mathematics and Mathematics Education (ISIMMED) 第四届国际数学与数学教育创新研讨会(ISIMMED)

数学的实践与认识 Pub Date : 2022-01-01 DOI: 10.1063/12.0012612

引用次数: 0

How school size and student teacher ratio affecting the students' mathematics achievement 学校规模和生师比例如何影响学生的数学成绩

数学的实践与认识 Pub Date : 2022-01-01 DOI: 10.1063/5.0109022

Raflianti Rafiu, H. Retnawati, Muhammad Ikhsan Sahal Guntur

引用次数: 0

The role of students’ non-cognitive factors and school resources in predicting mathematics achievement using PISA 2018 Indonesia data 学生非认知因素和学校资源在预测2018年PISA印度尼西亚数学成绩中的作用

数学的实践与认识 Pub Date : 2022-01-01 DOI: 10.1063/5.0111125

Ari Kusdinar, Kismiantini

引用次数: 0

Exploring the use of portfolio assessment in fostering students’ mathematical creativity and self-regulated learning in an era of uncertainty 探索在不确定时代运用档案袋评估方法培养学生的数学创造力和自主学习能力

数学的实践与认识 Pub Date : 2022-01-01 DOI: 10.1063/5.0111225

I. Rafi, H. Retnawati

引用次数: 0