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60 pages Grades 8–10
Students Look for Errors to Gain Mathematical Understanding
Students love to spot errors. What's Wrong with This Picture? uses this enthusiasm to exercise the basic skills of geometry and visual thinking in new and exciting ways.
This softcover book contains 72 pages of blackline masters that are perfect as warm-up exercises, homework, or group activities.
Each page has up to four problems:
- At least one is worked correctly.
- At least one contains an error, an optical illusion, or conflicting information.
- Students reason through the problems to determine which are correct and which are not.
Looking out for errors and discussing them as a class:
- Deepens students' understanding of the concepts
- Improves their powers of observation,
- Improves their mastery and retention of the material
