Volume of liquid

Introduction

Volume of liquid refers to the capacity of liquids in the containers. Capacity can be measured by using non standard units (more or less) and in standard units in millimeters (ml) and liters (l) in the metric system. Investigations amount of liquids which can be poured between containers of different shapes and sizes. Exploration of capacity or volume of liquid involves manipulation of containers of various sizes that may either be collected or purchased for classroom activities.

Misconception on Capacity

Misconception on capacity may arise among the students while teaching Volume of liquid especially when comparing capacity of two containers that can hold more. Students often make the comparison on height rather than its capacity. When asked which hold more, the tall container or a short container, most children will choose the taller container even if the shorter one actually holds more. Thus, it is best to begin the study of capacity by using direct comparison.

Stages of Conceptual Development For Volume of Liquid in Year Two

Measuring is process by which a number is assigned to an attribute of an object or event. One of the measurable attributes in KBSR Mathematics Year Two is the measurement of volume of liquid. A systematic conceptual development will indeed help pupils learnt the topic on liquid measurement more effectively. Based on the measuring process, the following are suggested as pedagogical development for the topic of liquid in Year Two:

o Identifying the attribute for the volume of liquid

o Direct comparisons of volumes of liquid

o Indirect comparisons of volumes of liquid through a reference

o Identifying instruments used as non-standard measurements for volume of liquid

o Measuring volumes of liquid using non-standard measurements

o Introducing standards measurements for volumes of liquid

o Measuring volumes of liquid using standard measurements in litres (l)