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XY Encounter

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Teacher's Guide: Part 4: Conclusion

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Map of Teacher's Guide	Part 1	Part 2	Part 3	Part 4
	Introduction	Introduction	Introduction	Introduction
	Pause Point 1	Pause Point 1	Pause Point 1	Pause Point 1
	Pause Point 2	Conclusion	Pause Point 2	Conclusion
	Pause Point 3		Conclusion
	Conclusion

Related Activities and Extensions:

1. Construct concrete models of fractions.
2. Compare fractional parts of whole objects in a problem situation using concrete models.
3. Construct concrete models of equivalent fractions for fractional parts of whole objects.
4. Generate equivalent fractions using concrete and pictorial models.
5. Model fraction quantities greater than one using concrete materials and pictures.
6. Use models to relate decimals to fractions.
7. Compare two fractional quantities in a problem-solving situation using common denominators.

Conclusion to Part 4:

Hooray for Max and Keisha! They’ve independently solved the final clue and race to the cave to meet the alien. Happy to see each other, they hurry inside, racing through the deeper part of the cave, which looks like a high tech generator. Upon entering the room, the dynamic duo is crushed to discover the spacecraft has lifted off. Wait! Looking at where the craft had been, they spot the “golden disk” – the one from the Voyager spacecraft! WOW. An alien postcard! So that’s how the alien found them. Now, if it found them once, can it find them again?