Teach your class to think outside the box. Scholars use the concept of equality to solve a problem in the assessment task. They determine how to use a scale to identify the one box out of a set of nine boxes that is heavier than the others.

Concepts

equality problems, balancing scale, problem solving strategies

Show More Show Less

Additional Tags

math

Show More Show Less

Instructional Ideas

• Provide manipulatives for struggling learners

Classroom Considerations

• While the task is worthwhile, it does not assess the indicated Common Core standards
• The class should have previous experience using balances in reasoning about equality

Pros

• Requires pupils to think analytically
• Teacher resource lists reflection questions that help instructors determine how well learners performed on the task

Cons

• Diagram overlaps text in some cases

Common Core

6.EE.A.4 6.EE.B.5 MP3 MP7