Item: tExamplesOtherRecursive1a

Stem:

Give the first 4 terms of a sequence that satisfies the following:

1. The first two terms are each positive integers between 2 and 4, inclusive.

2. Each subsequent term is a sum of the previous two terms.

Note: There is more than one correct answer. Any example you choose that meets the above requirements will be scored as correct.

Inputs:

1. Enter your answers here:
2. ,
3. ,
4. and

Key:

• Observable: 2, 2, 4, 6. Score: 1; Evidence Value: 1.
  • Student:Right!
  • Teacher:The student got this item correct.
• Observable: 3, 2, 5, 7. Score: 1; Evidence Value: 1.
  • Student:Right!
  • Teacher:The student got this item correct.
• Observable: 4, 2, 6, 8. Score: 1; Evidence Value: 1.
  • Student:Right!
  • Teacher:The student got this item correct.
• Observable: 2, 3, 5, 8. Score: 1; Evidence Value: 1.
  • Student:Right!
  • Teacher:The student got this item correct.
• Observable: 3, 3, 6, 9. Score: 1; Evidence Value: 1.
  • Student:Right!
  • Teacher:The student got this item correct.
• Observable: 4, 3, 7, 10. Score: 1; Evidence Value: 1.
  • Student:Right!
  • Teacher:The student got this item correct.
• Observable: 2, 4, 6, 10. Score: 1; Evidence Value: 1.
  • Student:Right!
  • Teacher:The student got this item correct.
• Observable: 3, 4, 7, 11. Score: 1; Evidence Value: 1.
  • Student:Right!
  • Teacher:The student got this item correct.
• Observable: 4, 4, 8, 12. Score: 1; Evidence Value: 1.
  • Student:Right!
  • Teacher:The student got this item correct.
• Observable: . Score: 0; Evidence Value: 0.
  • Student:Sorry, that was incorrect. To start this problem, you needed to enter any two numbers between 2 and 4 (basically, 2, 3, and 4 are your choices). To get the next number, you add those two numbers. And then add the last two numbers to get the fourth number. An example of a sequence that fits the constraints would be: 2, 3, 5, 8.
  • Teacher:The student did not get this item right.

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