ALEX Classroom Resource

  

Decimals in Expanded Form

  Classroom Resource Information  

Title:

Decimals in Expanded Form

URL:

https://aptv.pbslearningmedia.org/resource/mgbh-math-nbt-expandedform/decimals-in-expanded-form/

Content Source:

PBS
Type: Audio/Video

Overview:

Find the value of digits by exploring the number 342.98. This video focuses on using what you know about place value to determine what each digit represents in a number that extends to the hundredths place.

Content Standard(s):
Mathematics
MA2019 (2019)
Grade: 4
19. Use visual models and reasoning to compare two decimals to hundredths (referring to the same whole), recording comparisons using symbols >, =, or <, and justifying the conclusions.
Unpacked Content
Evidence Of Student Attainment:
Students:
When given decimals to the hundredths will,
  • Compare two decimals using place value, visual models, and reasoning.
  • Record comparisons of two decimals using <, >, or = and justify the conclusion.
  • Use place value language to describe decimals in different ways to make comparisons.

  • Example: 0.13 as one-tenth and three-hundredths, or thirteen hundredths.
Teacher Vocabulary:
  • Visual model
  • Compare
  • Reasoning
  • Tenths
  • Hundredths
  • Decimal point
  • Place value
Knowledge:
Students know:
  • a variety of strategies for comparing whole numbers and can record comparisons using symbols <, >, or =.
Skills:
Students are able to:
  • Use visual models and reasoning to compare two decimals to hundredths.
  • Record comparisons of two decimals to hundredths using symbols <, >, or =, and justify the conclusion.
Understanding:
Students understand that:
  • Comparison of decimals are valid only when they refer to the same whole.
  • Two decimals are equivalent if they represent the same area or name the same point on a number line.
Diverse Learning Needs:
Essential Skills:
Learning Objectives:
M.4.19.1: Compare two fractions with the same numerator or the same denominator by reasoning about their size.
M.4.19.2: Recognize that comparisons are valid only when the two fractions refer to the same whole.
M.4.19.3: Record the results of comparisons with the symbols >, =, or <, and justify the conclusions, e.g., by using a visual fraction model.
M.4.19.4: Convert fractions to decimals.
M.4.19.5: Compare two decimals to tenths.
M.4.19.6: Compare whole numbers.
M.4.19.7: Identify comparison symbols.
Examples: >, <, and =.

Prior Knowledge Skills:
  • Define equivalent.
  • Recognize pictorial representations of equivalent fractions.
  • Recognize different interpretations of fractions, including parts of a set or a collection, points on a number line, numbers that lie between two consecutive whole numbers, and lengths of segments on a ruler.
  • Recognize that equal shares of identical wholes need not have the same shape.
  • Compose two-dimensional shapes (rectangles, squares, trapezoids, triangles, half-circles, and quarter-circles) or three-dimensional shapes (cubes, right rectangular prisms, right circular cones, and right circular cylinders) to create a composite shape, and compose new shapes from the composite shape.
  • Label a fraction with multiple representations.
  • Recognize that a whole can be partitioned into differing equal parts (halves, fourths, eighths, etc.).
  • Partition circles and rectangles into two and four equal shares; and describe the shares using the words halves, fourths, and quarters; and use the phrases half of, fourth of, and quarter of.
  • Recognize different interpretations of fractions, including parts of a set or a collection, points on a number line, numbers that lie between two consecutive whole numbers, and lengths of segments on a ruler.

Alabama Alternate Achievement Standards
AAS Standard:
M.AAS.4.19 Compare fractions of a whole, halves and fourths using symbols (>,<,=).


Tags: comparison, decimals, hundredths
License Type: Custom Permission Type
See Terms: https://www.pbslearningmedia.org/help/terms-of-use/#restrictions
For full descriptions of license types and a guide to usage, visit :
https://creativecommons.org/licenses
Partnered Event: ALEX Resource Development Summit
Accessibility
Comments

ALCOS 2019

19. Use visual models and reasoning to compare two decimals to hundredths (referring to the same whole), recording comparisons using symbols >, =, or <, and justifying the conclusions.

  This resource provided by:  
Author: Michelle Frye
The event this resource created for:ALEX Resource Development Summit