Submitted by Gladys Williams ,
Objectives:
Content:
Students will...Convert the customary system measurements,
Solve word problems,
Practice customary system conversions
- Analyze,measure and compare using the customary system.
Cultural:
Students will...
- Analyze,measure and compare using the customary system.
Language: Content Obligatory
Students will...
- Relate the vocabulary words, such as, length, capacity, weight/mass, time and money, when communicating customary system problems.
Language: Content Compatible
Students will...Learning Strategies / Social and Skills Development:
Students will...
Time Frame:
60 minutes
Materials Needed:
Conversion Chart, paper, pencil, and calculator
Description of Assessment (Performance Project):
Learning Objective: To select and use appropriate problem-solving strategies to solve single and multi-step problems.
Direct Teaching: Explain the Customary System Chart and model how to calculate the old unit for the new unit.
Display the word problem: Clara is having an ice cream party. She can buy__1_gallon of ice for $6.97 at Bi-Lo. Her favorite ice cream at Baskin Robins sells 1 pint of ice cream for $3.79 and 1 quart for $7.80. Which ice cream should Clara buy if she needs 1 gallon of ice cream, and she wants to spend the least amount of money possible?
Solve the word problem as a whole group.
Students will reread the word problem. Discuss as a class, how to determine the answer. Students share their ideas aloud. Introduce the customary system conversion chart. Give students time to determine another solution.
Teacher will point out that the system used to help Clara to decide which ice cream to buy uses a procedure with customary units. Teacher show students how to convert from one unit of measurement to another using multiplicationby a conversion factor that's equal to one. Teacher show students to write a conversion factor by expressing it like a fraction with the new unit above the old unit.
Guided Practice: Students work several examples as a class with converting 1 gallon = how many pints? 1 gallon = how many quarts?
Independent Practice: Convert measurements using the customary system for the following;
1. 4 miles = _______ Feet 2. 18 inches = _____ feet 3. 36 yards = _____ inches 4. 8 pints = _____ gallons
5. 8 ounces = _____pounds 6. 3 tons = ____ pounds
Teacher discuss each example as a class.
Assessment:
Distribute copies of Customary System Conversions assessment.
References and Resources:
Lesson 150 Customary System Conversions.doc
Attachments:
NOTE: some attachments are in PDF form (get Acrobat Reader)List only Attachments specific to this Lesson.
Customary System Conversions Assessment