These exercises and activities are for students to use independently of the teacher to practice number properties.
find a tenth of a whole number
find a fraction of a whole number
Proportions and Ratios, AM (Stage 7)
Before starting these short activities, students should be comfortable with answering ‘sharing’ problems of the form found in the activity ‘wafers’. Early sharing strategies involve dealing, and where partitioning is required, some students will partition ‘leftover’ objects into half, then continue dealing, then halve each leftover piece (and so on). To work on these activities, students need to have more sophisticated dealing strategies and to have linked the concept of a sharing problem to obtaining a fractional answer. As such this activity is developing the quotient sub-construct of fractions.
Exercise 1
Asks students to share a number of wafers between 10 people. Solutions are improper fractions in some cases.
Exercise 2
Asks students to share a number of wafers between 15, 20 and 30 people. In this exercise answers are required to be given as tenths, but the original fractions generated have denominators like 20, 30 or 15.
Printed from https://nzmaths.co.nz/resource/wafers-decimal-fractions at 12:01pm on the 29th April 2024