Representing Weight Measurements with Diagrams and Conversions

This lesson teaches how to represent weight measurements using diagrams and solve real-world problems involving customary weight conversions. It covers tools like bar diagrams and tables to convert pounds to ounces, using a practical example of Santiago's rock collection. The lesson emphasizes checking the final answer to ensure it meets the problem's requirements.

What is the equivalent of 1 pound in ounces?

• 16 ounces

• 12 ounces

• 20 ounces

• 8 ounces

How many ounces are there in 3 pounds?

• 32 ounces

• 48 ounces

• 64 ounces

• 80 ounces

If Santiago had 45 rocks and gave away 2/5 of them, how many rocks did he give away?

• 27 rocks

• 36 rocks

• 18 rocks

• 9 rocks

After giving away 2/5 of his rocks, how many rocks does Santiago have left?

• 9 rocks

• 18 rocks

• 27 rocks

• 36 rocks

What is the weight in pounds of the rocks Santiago has left?

• 36 pounds

• 27 pounds

• 18 pounds

• 9 pounds

What is the final weight of Santiago's remaining rocks in ounces?

• 432 ounces

• 576 ounces

• 384 ounces

• 512 ounces

What is a common mistake students make when solving word problems?

• Not using a calculator

• Forgetting to double-check the unit of the final answer

• Using the wrong diagram

• Not reading the problem carefully