Lesson Plan | Traditional Methodology | Units of Measurement: Capacity and Mass

Objectives

Duration: (10 - 15 minutes)

The purpose of this stage is to provide a clear and concise overview of what the students will learn throughout the lesson. From this understanding, students will be able to grasp the importance and practical application of the units of measurement for capacity and mass, establishing a solid foundation for understanding the content that will be explored in more depth during the lesson. This introduction will help keep students focused and motivated, knowing exactly which skills and knowledge they should acquire.

Main Objectives

1. Recognize the main units of measurement for capacity, such as liter (L) and milliliter (mL).

2. Identify the main units of measurement for mass, such as kilogram (kg) and gram (g).

3. Understand the instruments used to measure capacity (measuring jug) and mass (scale).

Introduction

Duration: (10 - 15 minutes)

The purpose of this stage is to provide a clear and concise overview of what the students will learn throughout the lesson. From this understanding, students will be able to grasp the importance and practical application of the units of measurement for capacity and mass, establishing a solid foundation for understanding the content that will be explored in more depth during the lesson. This introduction will help keep students focused and motivated, knowing exactly which skills and knowledge they should acquire.

Context

To start our lesson on units of measurement for capacity and mass, think about when you help in the kitchen at home. When we measure the amount of milk for a recipe, we use liters or milliliters. Similarly, when we weigh the ingredients, we use grams or kilograms. These are examples of how units of measurement are present in our daily lives and are essential for carrying out everyday tasks.

Curiosities

Did you know that people all over the world use these units of measurement? To facilitate trade and science, a system of units called the International System of Units (SI) was created. Thus, when we travel to another country, we can understand and use measurements the same way we do here in Brazil!

Development

Duration: (40 - 50 minutes)

The purpose of this stage is to deepen the students' understanding of the units of measurement for capacity and mass, as well as the instruments used for these measurements. By explaining each topic in detail and providing practical examples, students will be able to relate the theoretical content to everyday situations. The resolution of questions will allow students to apply the knowledge acquired and identify any doubts, promoting a solid and secure understanding of the subject.

Covered Topics

1. Units of Measurement for Capacity: Explain that capacity is the amount of liquid a container can hold. The main units of measurement are liter (L) and milliliter (mL). One liter is equal to 1,000 milliliters. Give examples using bottles of soda and cartons of milk. 2. Units of Measurement for Mass: Detail that mass is the amount of matter in an object. The most common units are kilogram (kg) and gram (g). One kilogram is equal to 1,000 grams. Use examples of rice packages and fruits weighed on the scale. 3. Measuring Instruments: Present the instruments used to measure capacity and mass. For capacity, show measuring jugs, syringes, and kitchen measuring cups. For mass, display different types of scales, such as kitchen scales and digital scales. Explain how each one is used and do a practical demonstration.

Classroom Questions

1. How many milliliters are there in 3 liters? 2. If a package of sugar weighs 500 grams, how many packages would be needed to total 2 kilograms? 3. Which instrument would you use to measure 250 milliliters of water and which instrument would you use to weigh 1 kilogram of flour?

Questions Discussion

Duration: (20 - 25 minutes)

This stage aims to review the questions presented earlier, ensuring that students understand the explanations and can clarify doubts. Additionally, it seeks to engage students in a reflective discussion about the practical application of the units of measurement for capacity and mass in their daily lives, promoting the consolidation of knowledge acquired during the lesson.

Discussion

•  Discussion of the Questions:

• How many milliliters are there in 3 liters?

• Explain that 1 liter is equal to 1,000 milliliters. Therefore, to find the number of milliliters in 3 liters, you multiply 3 by 1,000, resulting in 3,000 milliliters.

• If a package of sugar weighs 500 grams, how many packages would be needed to total 2 kilograms?

• Detail that 1 kilogram is equal to 1,000 grams. Thus, 2 kilograms equals 2,000 grams. Dividing 2,000 grams by 500 grams gives us 4 packages of sugar.

• Which instrument would you use to measure 250 milliliters of water and which instrument would you use to weigh 1 kilogram of flour?

• Explain that to measure 250 milliliters of water, you would use a measuring jug or a graduated syringe. To weigh 1 kilogram of flour, you would use a kitchen scale or a digital scale.

Student Engagement

1.  Student Engagement: 2. Ask students to reflect on how units of measurement are used in their homes. Can they identify situations where liters, milliliters, kilograms, and grams are used? 3. Question the students if they remember any situation where they saw their parents or guardians using a scale or a measuring jug. How was that experience? 4. Request that students, in pairs, discuss and share examples of objects or foods that can be measured in liters, milliliters, kilograms, and grams. 5. Ask students about the importance of using the correct unit of measurement when following a recipe. What could happen if they used the wrong unit?

Conclusion

Duration: (10 - 15 minutes)

The purpose of this stage is to review and consolidate the knowledge acquired during the lesson, ensuring that students have a clear understanding of the main points addressed. Additionally, it reinforces the practical importance of the content, connecting theory with the students' everyday lives.

Summary

• The main units of measurement for capacity are the liter (L) and the milliliter (mL), where 1 liter is equal to 1,000 milliliters.
• The main units of measurement for mass are the kilogram (kg) and the gram (g), where 1 kilogram is equal to 1,000 grams.
• The instruments used to measure capacity include measuring jugs, syringes, and kitchen measuring cups.
• The instruments used to measure mass include kitchen scales and digital scales.

The lesson connected the theory of units of measurement for capacity and mass with practice by using everyday examples, such as measuring ingredients in the kitchen and weighing food. Furthermore, the practical demonstration of measuring instruments helped visualize how measurements are performed in real life.

Understanding the units of measurement for capacity and mass is crucial for various daily activities, such as cooking, shopping, and even in some games. Knowing how to measure correctly can avoid mistakes in recipes and ensure accuracy in household tasks, in addition to being an important skill that will be used throughout life.