Question 1: A tree's height is approximately 2 1/4 meters. Represent this mixed number as an improper fraction.

Answer: 9/4

Question 2: Convert the improper fraction 11/4 into a mixed number.

Answer: 2 3/4

Question 3: On a map, a river spans 3 2/3 kilometers in length. Draw a visual representation of this length using the grid, indicating the fractional parts.

Answer: Student draws a line of 3 full units and 2/3 of a unit.

Question 4: A bird's migration covers 5 1/2 miles each day. How many miles is this in an improper fraction form?

Answer: 11/2

Question 5: Plot on the grid: a migrating animal travels 4 2/5 miles. Convert this to an improper fraction and then draw the distance.

Answer: 22/5

Question 6: In a pond, the water level drops by 1 3/4 meters over a week. Represent this change visually on the grid and write it as an improper fraction.

Answer: 7/4

Question 7: A rainforest area covers 7 5/8 square kilometers. Draw a visual approximation on the grid, breaking down the mixed number into fractions.

Answer: 61/8

Question 8: During a reforestation project, saplings are planted in groups of 2 3/4 per hectare. Convert this number into an improper fraction.

Answer: 11/4

Question 9: The length of a river stretch is 9 2/3 miles. Draw this length on the grid and write it as an improper fraction.

Answer: 29/3

Question 10: Challenge: A conservation area spans 12 4/7 square kilometers. Convert this to an improper fraction and illustrate it visually on the grid, emphasizing fractional parts.

Answer: 89/7

Question 11: Error analysis: A student converts 3 1/2 to an improper fraction as 7/2, then visualizes it on the grid. Identify the mistake and correct it.

Answer: The mistake is in the conversion step: 3 1/2 = (3×2)+1 / 2 = 7/2, which is correct. The error might be in drawing the visual; students should ensure 3 full units and 1/2 of a unit are accurately represented.