[accordion openall=”false” clicktoclose=”true” state=”closed” autoclose=”false” openfirst=”true” clicktoclose=”true”]
[accordion-item title=”What do you notice? What do you wonder?”]

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[accordion-item title=”Prompt”]

Which shelves are parallel?  

Make an estimate.

Sliding Shelves - 02 - Spark Image 1

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[accordion-item title=”Digging Deeper”]

The blue shelf is level.

Which shelves are parallel to the blue shelf?

Estimate

[/accordion-item]

[/accordion]

[accordion openall=”false” clicktoclose=”true” state=”open” autoclose=”false” openfirst=”true” clicktoclose=”true”]

[accordion-item title=”Prompt”]

What is needed if we are to prove which shelves are parallel to the blue shelf and which are not?

[/accordion-item]

[accordion-item title=”How Might You Use This Image?”]

[/accordion-item]

[accordion-item title=”Update With More Precision”]

[/accordion-item]
[/accordion]

[accordion openall=”false” clicktoclose=”true” state=”open” autoclose=”false” openfirst=”true” clicktoclose=”true”]
[accordion-item title=”Reveal: Video”]

[/accordion-item]
[/accordion]

[accordion openall=”false” clicktoclose=”true” state=”closed” autoclose=”false” openfirst=”true” clicktoclose=”true”]
[accordion-item title=”Consolidation Prompt #1″]

How could you adjust each of the non-parallel shelves so that they become parallel?

[/accordion-item]

[accordion-item title=”Consolidation Prompt #2″]

Create your own question to give to a peer: create two shelves that are either parallel or not parallel.

Include angle information in your diagram that makes it:

    • easy to determine if the lines are parallel; and,

    • another that is hard to determine if the lines are parallel. 

[/accordion-item]
[/accordion]

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