Lesson Plan | Active Learning | Units of Measure: Time

Assumptions: This Active Lesson Plan assumes: a 100-minute class, prior student study with both the Book and the start of Project development, and that only one activity (among the three suggested) will be chosen to be conducted during the class, as each activity is designed to take up a significant portion of the available time.

Objectives

Duration: (5 - 10 minutes)

The objectives stage is essential to direct the focus of students and the teacher towards the core competencies that will be developed during the lesson. By clearly establishing what is expected to be achieved, this section helps to ensure that all parties involved are aligned with the desired learning outcomes. The outlined objectives prepare students for the practical activities that will follow, ensuring they understand the importance of being able to read and convert time units in everyday life.

Main Objectives:

1. Empower students to read and interpret time intervals in different units (seconds, minutes, hours).

2. Develop conversion skills between time units, allowing students to convert seconds to minutes, minutes to hours, and vice versa.

Side Objectives:

1. Encourage the application of mathematical knowledge in everyday situations, reinforcing the relevance of mathematics in daily life.

Introduction

Duration: (15 - 20 minutes)

The introduction serves to engage students and connect the previously studied theoretical knowledge with practical and real situations. The proposed problem situations encourage students to apply their knowledge of converting time units in contexts they might encounter in their daily lives, preparing them for practical activities in class. The contextualization highlights the relevance of the topic, showing how understanding time units is vital in various professions and daily tasks, increasing student interest in the subject.

Problem-Based Situations

1. Imagine an astronaut is scheduled to spend 5 days, 12 hours, and 30 minutes on a space mission. How many minutes will he spend in space in total?

2. A chef needs to prepare a dish that takes 40 minutes to cook, but he only has a 20-minute break until the next customer arrives. How many minutes can he spend on other tasks before returning to finish the dish?

Contextualization

Time is one of the most present magnitudes in our lives, governing our routines and activities. From waking up in the morning to going to bed at night, we are constantly dealing with schedules, deadlines, and timetables. Furthermore, the ability to measure and convert time units is crucial in various professions, such as pilots, cooks, athletes, and scientists. For example, pilots need to calculate flight time and rest intervals, while cooks must adjust the preparation of dishes that require different cooking times. These real examples highlight the importance of understanding and applying knowledge about time units.

Development

Duration: (65 - 75 minutes)

The Development stage in the lesson plan is designed to allow students to apply the concepts learned about time units and conversion between them in a practical and playful manner. By working in groups, students not only solidify their mathematical understanding but also develop social and communication skills. Each proposed activity aims to engage students in fun and challenging scenarios, encouraging collaboration and critical thinking. The choice of a single activity allows for deeper exploration of the topic, ensuring that students can explore all the nuances and complexities of time conversions.

Activity Suggestions

It is recommended to carry out only one of the suggested activities

Activity 1 - The Race Against Time

> Duration: (60 - 70 minutes)

- Objective: Develop conversion skills between time units and logical reasoning in a competitive and collaborative activity.

- Description: In this activity, students will be divided into groups of up to 5 people. Each group will receive a worksheet with different events and the time each event takes, expressed in seconds, minutes, and hours. The challenge is to convert these times to the requested unit and order the events in a logical sequence, as if it were a race where the objective is to arrive as quickly as possible.

- Instructions:

• Divide the class into groups of up to 5 students.

• Distribute the event and time worksheets to each group.

• Each group must convert the times to the unit that will be used in the race (seconds, minutes, or hours).

• The groups must then order the events in a logical sequence.

• After the ordering, each group presents their sequence and justifies their choices, explaining the conversions made.

Activity 2 - The Mystery of the Cosmic Clock

> Duration: (60 - 70 minutes)

- Objective: Practice converting time units in a problem-solving context, stimulating teamwork and creativity.

- Description: Students, in groups, receive clues that contain events marked in different time units (seconds, minutes, hours). They must use their conversion knowledge to decipher the actual time of each event and thus solve the proposed mystery, which revolves around a mysterious clock that controls time in a parallel universe.

- Instructions:

• Organize students into groups of no more than 5.

• Give each group a set of clues with events and their respective times.

• Students must convert the times to the most convenient unit to solve the mystery.

• Each correctly solved clue leads to a new piece of information, helping to decipher the mystery.

• The first group to solve the mystery of the cosmic clock is the winner.

Activity 3 - Time for the Show

> Duration: (60 - 70 minutes)

- Objective: Apply knowledge of converting time units in a practical and fun situation, promoting organizational and presentation skills.

- Description: In this activity, students organize a 'show' where each part of the performance has a determined time. They need to convert these times to different units and ensure that the show is executed in the correct order, respecting the time intervals between each act.

- Instructions:

• Divide the class into groups of up to 5 students.

• Each group receives a show script with duration times expressed in different time units.

• Students convert the times to the most appropriate unit for executing the show.

• Each group organizes their show in the correct order and presents it to the class, explaining the conversions made.

• The class votes on the most organized and precise presentation regarding the times.

Feedback

Duration: (20 - 30 minutes)

The purpose of this stage is to consolidate students' learning, allowing them to reflect on what they have learned and share insights with their peers. The group discussion helps reinforce the acquired knowledge, as well as promoting communication and collaboration skills. The key questions are designed to guide students' reflections and ensure that all important aspects of the topic are discussed, providing a deeper understanding and an evaluation of the learning strategies adopted.

Group Discussion

Promote a group discussion with all students, where each group will share their findings and challenges faced during the activities. Start the discussion with a brief introduction: 'Now, let's share what we learned from today's activities. Each group will have the opportunity to explain how they performed the time conversions and which strategies were most effective. Remember, this is an opportunity to learn from each other.'

Key Questions

1. What were the main challenges you faced when converting times between different units?

2. How did the magnitude order of the time units (seconds, minutes, hours) affect your decisions during the activities?

3. Was there any group work strategy that proved particularly helpful? Share with the class.

Conclusion

Duration: (10 - 15 minutes)

The purpose of the conclusion stage is to ensure that students have a clear and consolidated understanding of the contents covered during the lesson, reinforcing the link between theory and practice. Additionally, it aims to emphasize the relevance of the topic to daily and professional life, ensuring that students recognize the importance of applying mathematical knowledge in various situations.

Summary

In the conclusion of the lesson, the teacher should summarize the main concepts covered about time units, reinforcing how students learned to read and convert time intervals in seconds, minutes, and hours. It is important to recap the conversion techniques and the practical situations in which these skills can be applied in daily life.

Theory Connection

Throughout the lesson, theory was applied through practical activities that simulated real situations, such as organizing a show and solving a mystery involving times. These activities allowed students not only to understand mathematical concepts but also to see the applicability of these concepts in varied contexts.

Closing

Finally, it is crucial to highlight the importance of studying time units, an essential skill in everyday life and in various professions. Understanding and being able to convert time units helps not only in personal organization but also in the efficient execution of daily and professional tasks.