Max Maths, Year 6, Work Book, Finding the difference between positive and negative integers

The 'Max Maths' Year 6 workbook presents a practice exercise aimed at helping students understand how to find the difference between positive and negative integers through the context of measuring river levels. In this exercise, students are provided with a table displaying the varying heights of a river's water level across different months of the year, with measurements ranging from negative to positive integers, indicating the water level in metres above or below a certain reference point.

Students are tasked with using a number line to calculate the differences in river levels between specific months. For instance, they must determine the change from March to July and from November to September by counting the steps between the respective integers on the number line. Additionally, they are asked to calculate the differences in water levels between various other pairs of months, such as August and October, May and April, June and February, and October and November. The workbook also includes an activity where students must arrange the river levels in ascending order and speculate on when the dry season might occur in this region. Finally, they are encouraged to think critically by choosing the best month to visit the region and providing a rationale for their choice.