Area Model Decimals

Táto simulácia nebola preložená do slovenčiny. Zatiaľ použite anglickú verziu.

Area Model Decimals Obrazovka  Stiahnuť  Kód na vloženie
  • Násobenie
  • Decimals
  • Area Model


  • Násobenie
  • Decimals
  • Area Model
  • Factors
  • Partial Products


Build rectangles of various sizes and relate multiplication to area. Partition a rectangle into smaller areas and discover new strategies for multiplying decimals!

Ukážkové ciele vzdelávania

  • Recognize that area represents the product of two numbers and is additive.
  • Develop and justify a strategy that uses the area model to simplify a decimal multiplication problem.
  • Devise a strategy to determine the product of two rational numbers (or an integer and a rational number) by representing the product as an area or the sum of areas.
  • Use an area model to understand why multiplying a given number by a decimal less than 1 results in a product smaller than the given number.
  • Interpret the product of two rational numbers using base-ten tiles

Standards Alignment

Common Core - Math

Apply and extend previous understandings of multiplication to multiply a fraction or whole number by a fraction.
Interpret the product (a/b) × q as a parts of a partition of q into b equal parts; equivalently, as the result of a sequence of operations a × q ÷ b. For example, use a visual fraction model to show (2/3) × 4 = 8/3, and create a story context for this equation. Do the same with (2/3) × (4/5) = 8/15. (In general, (a/b) × (c/d) = ac/bd.)
Find the area of a rectangle with fractional side lengths by tiling it with unit squares of the appropriate unit fraction side lengths, and show that the area is the same as would be found by multiplying the side lengths. Multiply fractional side lengths to find areas of rectangles, and represent fraction products as rectangular areas.
Interpret multiplication as scaling (resizing), by:
Comparing the size of a product to the size of one factor on the basis of the size of the other factor, without performing the indicated multiplication.
Explaining why multiplying a given number by a fraction greater than 1 results in a product greater than the given number (recognizing multiplication by whole numbers greater than 1 as a familiar case); explaining why multiplying a given number by a fraction less than 1 results in a product smaller than the given number; and relating the principle of fraction equivalence a/b = (n × a)/(n × b) to the effect of multiplying a/b by 1.
Verzia 1.2.1

Teacher-Submitted Activities

Games Remote Lesson ideas A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Trish Loeblein VŠ-zač


Area Model Decimals - Grade 6 A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Maura Dudley ZŠ-II Guided Matematika
Middle School Math Sim Alignment This contribution was designed by PhET. Amanda McGarry ZŠ-II Iné Matematika
PRIMARIA: Alineación con programas de la SEP México (2011 y 2017) This contribution was designed by PhET. Diana López K-5


Jazyk Download or Run Tips
Albánčina All shqip Download Run now Modeli i Syprinës: Decimal
Arabčina All العربية Download Run now نموذج مساحة الأعداد العشرية
Baskičtina All Euskara Download Run now Azalera-modeloa hamartarrekin
Bosnian All Bosanski Download Run now Matematički model površina - Decimalni brojevi
Čínština (Tradičná) All 中文 (台灣) Download Run now Area Model Decimals_面積模型與小數
Čínština (Zjednodušená) All 中文 (中国) Download Run now 面积模型:小数
Dánčina All Dansk Download Run now Arealmodel, decimaler
Fínčina All suomi Download Run now Pinta-alamalli desimaaleilla
Francúzština All français Download Run now Modélisation par les aires avec décimales
Gréčtina All Ελληνικά Download Run now Υπολογισμός εμβαδού - Δεκαδικοί
Gujarati All Gujarati Download Run now ક્ષેત્રફળનું મોડેલ - દશાંશ
Hindi All हिंदी Download Run now नमूने का क्षेत्रफल - दाशमिक 
Holandčina All Nederlands Download Run now Oppervlakte model decimalen
Japončina All 日本語 Download Run now 面積と式の展開(小数)
Kazakh All Kazakh Download Run now Ауданды ондық бөлшектермен есептеу
Kórejčina All 한국어 Download Run now 면적 모형: 소수
Latvian All Latviešu Download Run now Laukuma modeļa decimāldaļskaitļi
Maďarčina All magyar Download Run now Területmodell: tizedesjegyek
Marathi All मराठी Download Run now अपूर्णांकातील क्षेत्रफळ 
Mongolian All Монгол (Монгол) Download Run now Талбайн Загвар Бутархайгаар
Nemčina All Deutsch Download Run now Flächenmodell Dezimalzahlen
Perzština All فارسی Download Run now مدل مساحت اعشاری ها
Poľština All polski Download Run now Model pola - ułamki dziesiętne
Portugalčina (Brazília) All português (Brasil) Download Run now Modelo de Área: Decimais
Ruština All русский Download Run now Вычисление площади с десятичными дробями
Sinhalese All Sinhalese Download Run now වර්ගඑල ආකෘති දශම
Srbčina All Српски Download Run now Математика преко површина-Децимални бројеви
Španielčina All español Download Run now Modelo de Áreas: Decimales 
Španielčina (Mexico) All español (México) Download Run now Modelo de Áreas: Decimales
Španielčina (Peru) All español (Perú) Download Run now Modelo de área con decimales
Švédčina All svenska Download Run now Areamodellen och decimaltal
Taliančina All italiano Download Run now Rappresentazione grafica del prodotto di numeri decimali
Tamil All Tamil Download Run now மாதிரிகளின் தசமப் பரப்பளவு
Turečtina All Türkçe Download Run now Alan Modelinde Çarpma İşlemi (Ondalık)
Ukrajinčina All українська Download Run now Площинна модель десяткових дробів
Vietnamčina All Tiếng Việt Download Run now Số thập phân với mô hình diện tích

HTML5 sims can run on iPads and Chromebooks, as well as PC, Mac, and Linux systems.

iOS 12+ Safari
iPad compatible sims

Not officially supported. If you are using the HTML5 sims on Android, we recommend using the latest version of Google Chrome.

Latest version of Google Chrome
The HTML5 and Flash PhET sims are supported on all Chromebooks.
Chromebook compatible sims

Windows Systems:
Microsoft Edge, latest version of Firefox, latest version of Google Chrome.

Macintosh Systems:
macOS 10.13+, Safari 13+, latest version of Chrome.

Linux Systems:
Not officially supported. Please contact with troubleshooting issues.

Autorský tím Iné knižnice Poďakovanie
  • Amy Hanson (lead designer)
  • Amanda McGarry (co-lead)
  • Jonathan Olson (developer)
  • Karina Hensberry
  • Susan Miller
  • Ariel Paul
  • Kathy Perkins
  • almond-0.2.9.js
  • base64-js-1.2.0.js
  • FileSaver-b8054a2.js
  • font-awesome-4.5.0
  • game-up-camera-1.0.0.js
  • he-1.1.1.js
  • himalaya-0.2.7.js
  • jama-1.0.2
  • jquery-2.1.0.js
  • lodash-4.17.4.js
  • pegjs-0.7.0.js
  • seedrandom-2.4.2.js
  • text-2.0.12.js
  • TextEncoderLite-3c9f6f0.js