How Far Is One Block

How far is a block? (hard to generalize but can estimate it) Blocks walk unit community ppt powerpoint presentation Just how far is "a block", anyway?

PPT - Unit 3: My Community PowerPoint Presentation, free download - ID

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How Far Is a Block? (Hard to Generalize But Can Estimate It)

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PPT - Unit 3: My Community PowerPoint Presentation, free download - ID

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Just how far is "a block", anyway? - Instructables