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Lesson 4-2
Measurement & Units

Weight & Capacity (Pounds, Ounces, Liters)

Explore weight and capacity using virtual balance scales and kitchen baking scenarios. Learn to compare weights and understand capacity measurements in real-world contexts.

Learning Objectives

  • Use virtual balance scales to compare weights
  • Understand the relationship between pounds and ounces
  • Measure capacity using liters and cups
  • Apply weight and capacity skills to real-world scenarios

Interactive Activities

Virtual Balance Scale Practice

Interactive Tool

Use virtual balance scales to compare weights of different objects like apples and eggs, understanding relative weight.

Scenario:

Students use virtual balance scales to compare weights of kitchen items and everyday objects.

Method:

Balance Scale Method: Place objects on scale, observe which side goes down (heavier), record observations.

Practice:

Compare weights of 8 different object pairs using virtual balance scale and record results.

Weight Comparison
Virtual Tools
Balance Scale

Kitchen Baking Scenarios

Real-World Application

Practice weight and capacity measurements in kitchen baking scenarios with sugar (1 pound) and milk (2 cups).

Scenario:

Students work with baking ingredients to understand weight and capacity in real cooking contexts.

Method:

Kitchen Method: Measure 1 pound of sugar, 2 cups of milk, understand practical weight and capacity units.

Practice:

Complete 6 baking scenarios involving weight and capacity measurements.

Weight Measurement
Capacity Measurement
Kitchen Math

Weight Unit Conversion

Unit Conversion

Learn the relationship between pounds and ounces, understanding that 1 pound = 16 ounces.

Scenario:

Students discover the relationship between pounds and ounces through hands-on activities.

Method:

Conversion Method: Use 16 one-ounce weights to equal 1 pound, practice simple conversions.

Practice:

Convert between pounds and ounces for 10 different weight measurements.

Unit Conversion
Weight Units
Number Relationships

Capacity Measurement

Capacity Practice

Explore capacity using liters and cups, understanding volume measurements in containers.

Scenario:

Students measure liquid capacity using various containers and measurement tools.

Method:

Capacity Method: Fill containers with water, measure in liters and cups, compare capacities.

Practice:

Measure capacity of 6 different containers and record in both liters and cups.

Capacity
Volume
Liquid Measurement

Weight and Capacity Word Problems

Problem Solving

Apply weight and capacity skills to solve word problems involving cooking and shopping scenarios.

Scenario:

Students solve problems involving weight and capacity in real-world contexts.

Method:

Problem-Solving Method: Read problem, identify weight/capacity needs, use appropriate tools, solve and check.

Practice:

Solve 5 word problems involving weight and capacity measurements.

Word Problems
Weight Application
Capacity Application

Measurement Games

Game-Based Learning

Reinforce weight and capacity skills through engaging games and interactive activities.

Scenario:

Students play games that reinforce weight and capacity concepts in a fun environment.

Method:

Game Method: Use weight guessing games, capacity challenges, and measurement races.

Practice:

Complete 3 different weight and capacity games and related activities.

Weight
Capacity
Interactive Learning

Key Concepts

Weight Units:

  • • Pounds (lb) - larger weight unit
  • • Ounces (oz) - smaller weight unit
  • • 1 pound = 16 ounces
  • • Use balance scale to compare weights

Capacity Units:

  • • Liters (L) - metric capacity unit
  • • Cups - common capacity unit
  • • Measure liquid volume
  • • Use measuring cups and containers