Math Mammoth Measuring is a worktext that covers measuring length, weight, volume, and temperature
as they are typically covered during grades 1-3.
The book contains both textbook explanations and exercises, and is designed to be very easy to teach from, requiring fairly little teacher preparation; however in several lessons you need to find beforehand measuring equipment such as a ruler or a scale or measuring cups.
This book is NOT organized by grade-levels nor with increasing difficulty. Instead, I have grouped
together first of all the lessons on measuring length, then measuring weight, then measuring volume, and
lastly temperature.
In each section, measuring in customary system comes first, followed by lessons about the metric system.
The first lessons in each unit typically have hands-on exercises where the student actually uses the
suitable measuring equipment, and the last lessons in each section include abstract problems about
conversions between the units. The conversion problems in this book are fairly easy; students will study
unit conversions more in later grades.
For youngest children (first-graders), the easiest lessons to use are Measuring Lines in Inches and
Measuring Lines in Centimeters. Most material in the book is geared towards second and third grade.
The lesson "Exploring Measuring" conveys the idea of measuring as repeatedly applying the measuring
unit. In the rest of the lessons, the student learns many of the commonly used measuring units.
The lessons on measuring weight have several activities to do at home using a bathroom scales. The goal
is to let students become familiar with pounds and kilograms, and have an idea of how many pounds or
kilograms some common things weigh. In order to estimate weight, a child has to know the approximate
weights of some objects, and then compare the weight of the unknown object to some known weight. This
knowledge is gained through experience.
Similarly, in studying volume, the lessons include many hands-on activities so that the student gets first-
hand experience in measuring, and has a basic knowledge of how "big" the units cup, pint, quart, gallon,
milliliter, and liter are.
When it comes to measuring, experience is the best teacher. We all use various measuring units in our
everyday life, and using them is the key to remembering what they are and what the conversion factors
are. Naturally, people in the United States often do not use the metric system a lot, while people
elsewhere do not use the customary system. The units your child is not using are likely to be forgotten
easily. So encourage the student(s) to have free play time with measuring devices such as a scale,
measuring cups, a measuring tape, and rulers - including equipment that uses metric units.
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