Contains an introduction to the concept of time, in simple text with illustrations, and provides information on what it is, how it is measured, how it was perceieved by ancient people, and related topics.
Presents an introduction to the concept of speed, in simple text with illustrations, explaining what it is, how it is measured, on land, at sea, and in the air.
Describes some of the different systems used to measure temperature, explaining what temperature is, looking at scales and thermometers, and discussing weather measurement and body temperature. Includes an experiment.
Describes some of the different tools used to measure height, explaining what height is, discussing rulers, tape measures, angles, estimation, and other topics, and including an experiment.
Presents an introduction to the concept of area, in simple text with illustrations, explaining what it is, how it is measured, on land and in the water, as well as explanations of different shapes.
Contains an introduction to the concept of volume, in simple text with illustrations, and provides information on what is, how it is measured, including length and area.
Contains an introduction to the concept of weight, in simple text with illustrations, and provides information on what it is, how it is measured, and its history.
Contains an introduction to the concept of distance, in simple text with illustrations, and provides information on what it is, how it is measured, how it is perceieved on land and at sea.
