Question

Keeli was asked to approximate the square root of 38 to the nearest whole number.

Her work is shown here. Analyze her work, describing what she did correctly and what she did incorrectly. Provide the correct approximation, showing and explaining your work.

38 is between the two perfect squares 36 and 64.
38 is closer to 36 than it is to 64.
So The square root of 38 is 6.

Answer 1

What's the square of 7?

Answer 2

2.645751311

Answer 3

no that's the square root. what is 7*7?

Answer 4

Oh sorry. 49

Answer 5

now look at the first line of Keeli's reasoning...