Example of calculating drip rates – using numeracy concepts

Drip rates have traditionally been taught by using an equation or formula. This video shows how the answer can be worked out using mental reasoning. This method calls for a deeper understanding of the problem and is less likely to be forgotten. A relational understanding of time and volume and rate is developed and this understanding can be transferred to other situations. Knowing some mathematical facts or routines such as a formula for drip rates is not enough to enable learners to use that knowledge flexibly in a wide range of situations. The mathematical processes involved in calculating drip rates need to be understood if the learner is to know if their answer is correct or not.

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