Lesson Plan | Technical Methodology | Units of Measurement

Objectives

Duration: 10 - 15 minutes

The purpose of this stage is to ensure that students understand the importance of units of measurement and how they are applied in various everyday situations and in the job market. By developing practical and experimental skills, students will be better prepared to face real challenges and apply the knowledge acquired effectively and relevantly.

Main Objectives

1. Understand and recognize different units of measurement, such as length, capacity, mass, time, and volume.

2. Apply units of measurement in practical and everyday situations.

3. Develop skills to convert between different units of measurement.

Side Objectives

1. Encourage the importance of units of measurement in the context of the job market.
2. Stimulate curiosity and critical thinking regarding measurements and their practical applications.

Introduction

Duration: 10 - 15 minutes

The purpose of this stage is to ensure that students understand the importance of units of measurement and how they are applied in various everyday situations and in the job market. By developing practical and experimental skills, students will be better prepared to face real challenges and apply the knowledge acquired effectively and relevantly.

Contextualization

Units of measurement are fundamental in our daily lives and in various professions. From measuring the quantity of ingredients in a recipe to calculating the distance traveled on a trip, units of measurement are present in almost all our daily activities. Understanding how to use them correctly is essential to ensure accuracy and efficiency, both in personal and professional contexts.

Curiosities and Market Connection

Curiosity: Did you know that the meter was originally defined in 1791 as one ten-millionth of the distance from the equator to the North Pole? Accuracy in measurements has always been crucial for technological and scientific advances. Market Connection: In the construction sector, for example, engineers and architects depend on precise measurements to design safe and functional buildings. In the food industry, standardizing units of measurement ensures that products have the same quality and flavor anywhere in the world.

Initial Activity

Activity: Design a short video (2-3 minutes) that shows the importance of units of measurement in different industries, such as construction, medicine, and technology. Then, pose a provocative question: "What would the world be like if we didn’t have standardized units of measurement?" Allow students to discuss briefly in pairs before sharing their ideas with the class.

Development

Duration: 50 - 55 minutes

The purpose of this stage is to ensure that students understand the different units of measurement and their practical applications. Through experimental activities and fixation exercises, students can apply the knowledge acquired, develop skills to convert between units, and reflect on the importance of precision in measurements.

Covered Topics

1. Length
2. Capacity
3. Mass
4. Time
5. Volume
6. Conversion between units of measurement

Reflections on the Theme

Guide students to reflect on how units of measurement are essential for precision in various professional fields, such as engineering, medicine, and the food industry. Ask: 'How could a lack of standardization in units of measurement affect the safety and quality of the products and services we use daily?' Spark discussion on the importance of precision and standardization.

Mini Challenge

Building a Homemade Scale

Students will build a simple scale using recyclable materials and everyday objects to measure mass. This practical activity will help understand the application of mass measurement units and the importance of precision.

Instructions

1. Divide students into small groups of 3 to 4 members.
2. Distribute the necessary materials: hangers, plastic bags, string, adhesive tape, and small objects of different masses (such as bottle caps, coins, etc.).
3. Instruct each group to assemble the scale using the hanger as a support, the plastic bags as containers, and the string to balance the bags on the hanger.
4. Ask students to use the scale to compare the mass of different objects, recording their observations and measurements.
5. Guide students to discuss the precision of their measurements and possible sources of error.

Objective: Apply knowledge about mass measurement units in a practical activity, developing construction and experimentation skills, while promoting discussion about precision and error in measurements.

Duration: 25 - 30 minutes

Evaluation Exercises

1. Convert 1500 milliliters to liters.
2. A recipe calls for 250 grams of flour. Convert this amount to kilograms.
3. If a movie lasts 2 hours and 30 minutes, how many minutes does it last in total?
4. A water tank has a capacity of 5 cubic meters. Convert this capacity to liters.
5. A runner traveled 5 kilometers. How many meters did he run?

Conclusion

Duration: (10 - 15 minutes)

The purpose of this stage is to consolidate students’ learning, ensuring they understand the relevance of units of measurement both in theory and in practice. By promoting reflective discussion and recapping the main points, students can better internalize the knowledge acquired and understand its application in real contexts.

Discussion

Promote an open discussion with students about the activities conducted during the class. Ask what the main challenges were encountered when building the homemade scale and how they solved those problems. Encourage students to reflect on the importance of precision in measurements and how this applies in various professions and in daily life. Ask them to share examples of real situations where a lack of precision could cause issues. Also discuss the relevance of conversions between units of measurement and when they are necessary.

Summary

Recap the main content covered in the class, such as the different units of measurement (length, capacity, mass, time, and volume), the importance of precision and standardization in measurements, and the techniques for converting between units. Remind students about the practical applications of units of measurement in various professional fields and in everyday life.

Closing

Conclude the class by highlighting how theory was connected to practice through experimental activities, such as building the homemade scale and fixation exercises. Explain that these activities not only reinforce theoretical knowledge but also develop practical and critical skills that are essential in the job market. Emphasize the importance of understanding and correctly applying units of measurement to ensure precision and quality in various situations.