1.8Proof Formats
Quick Answer
The same proof can be written in three formats: two-column (most common in geometry), paragraph (written in sentences), and flow-chart (boxes connected by arrows). All three must include the same logical steps and reasons.
Essential Question
How do two-column, paragraph, and flow-chart proofs differ in format while conveying the same logical argument?
Learning Goals
- 1Write a proof in two-column format.
- 2Convert a two-column proof to paragraph form.
- 3Represent a proof as a flow chart.
- 4Identify the advantages of each proof format.
Key Vocabulary
Paragraph proof
A proof written in complete sentences that explains each logical step.
Flow-chart proof
A proof represented as a diagram with boxes (statements) connected by arrows (logical flow) and reasons written below each box.
Full lesson content coming soon
Worked examples, guided practice problems, a workbook, quiz, and downloadable PDF resources will be added to this lesson in Phase 2. The learning goals and vocabulary above reflect the complete lesson scope.