# Area Model Decimals

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Vajuta, et mängida
Kasuta seda HTML koodi, et näidata ekraanipilti koos sõnadega ,,Vajuta, et mängida". Multiplication Decimals Area Model PhETi toetavad ja õpetajad nagu Teiegi.

### Sisu

• Multiplication
• Decimals
• Area Model
• Factors
• Partial Products

### Description

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

### Näidis-õpieesmärgid

• 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

5.NF.B.4
Apply and extend previous understandings of multiplication to multiply a fraction or whole number by a fraction.
5.NF.B.4a
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.)
5.NF.B.4b
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.
5.NF.B.5
Interpret multiplication as scaling (resizing), by:
5.NF.B.5a
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.
5.NF.B.5b
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.
Version 1.2.1

### Teacher-Submitted Activities

Games Remote Lesson ideas Trish Loeblein PK
KK
K-5
ÜÕ-Sissejuhatus
KT
Remote
Füüsika
Matemaatika
Keemia
Area Model Decimals - Grade 6 Maura Dudley PK Guided Matemaatika
Middle School Math Sim Alignment Amanda McGarry PK Muu Matemaatika
PRIMARIA: Alineación con programas de la SEP México (2011 y 2017) Diana López K-5
PK
Guided
Demo
Pr
KT
Discuss
Astronoomia
Keemia
Füüsika
Matemaatika
albaania All shqip Modeli i Syprinës: Decimal
araabia All العربية نموذج مساحة الأعداد العشرية
bosnia All Bosanski Matematički model površina - Decimalni brojevi
Gujarati All Gujarati ક્ષેત્રફળનું મોડેલ - દશાંશ
hiina (lihtsustatud) All 中文 (中国) 面积模型：小数
hiina (trad.) All 中文 (台灣) Area Model Decimals_面積模型與小數
Hindi All हिंदी नमूने का क्षेत्रफल - दाशमिक
hispaania All español Modelo de Áreas: Decimales
hispaania (Peruu) All español (Perú) Modelo de área con decimales
hollandi All Nederlands Oppervlakte model decimalen
itaalia All italiano Rappresentazione grafica del prodotto di numeri decimali
jaapani All 日本語 面積と式の展開（小数）
kasahhi All Kazakh Ауданды ондық бөлшектермен есептеу
korea All 한국어 면적 모형: 소수
kreeka All Ελληνικά Υπολογισμός εμβαδού - Δεκαδικοί
läti All Latviešu Laukuma modeļa decimāldaļskaitļi
marathi All मराठी अपूर्णांकातील क्षेत्रफळ
mongoli All Монгол (Монгол) Талбайн Загвар Бутархайгаар
poola All polski Model pola - ułamki dziesiętne
portugali (Brasiilia) All português (Brasil) Modelo de Área: Decimais
prantsuse All français Modélisation par les aires avec décimales
pärsia All فارسی مدل مساحت اعشاری ها
rootsi All svenska Areamodellen och decimaltal
saksa All Deutsch Flächenmodell Dezimalzahlen
serbia All Српски Математика преко површина-Децимални бројеви
singali All Sinhalese වර්ගඑල ආකෘති දශම
soome All suomi Pinta-alamalli desimaaleilla
Spanish (Mexico) All español (México) Modelo de Áreas: Decimales
taani All Dansk Arealmodel, decimaler
tamili All Tamil மாதிரிகளின் தசமப் பரப்பளவு
türgi All Türkçe Alan Modelinde Çarpma İşlemi (Ondalık)
ukraina All українська Площинна модель десяткових дробів
ungari All magyar Területmodell: tizedesjegyek
vene All русский Вычисление площади с десятичными дробями
vietnami All Tiếng Việt Số thập phân với mô hình diện tích

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