Lesson Plan Teknis | Research: Sampling

Objective

Duration: 10 - 15 minutes

The aim of this stage is to ensure that students grasp the basic concepts of sample and census research, along with how to apply them in real-world scenarios. This understanding is crucial not just for academic knowledge, but also to equip students with the skills needed for research in their future careers, especially in fields that highly value data collection and analysis capabilities.

Objective Utama:

1. Plan a survey research project, selecting the most appropriate sampling method for various situations.

2. Differentiate between sample research and census research, recognizing the benefits and downsides of each approach.

3. Calculate and explain measures of central tendency (mean, median, and mode) based on sample research data.

Objective Sampingan:

1. Enhance critical thinking skills while interpreting the data gathered.

Introduction

Duration: 10 - 15 minutes

The aim of this stage is to ensure that students understand the basic principles of sample and census research, enabling them to apply these concepts in actual situations. This foundational knowledge not only serves academic purposes but also enhances their research skills for their future careers, where data analysis is increasingly essential.

Curiosities and Market Connection

Did you know that many significant market decisions rely on sample surveys? Firms like Google and Facebook depend on sample data to refine their algorithms and present more relevant advertisements. Additionally, research organizations, such as the U.S. Census Bureau, use sampling methods to carry out censuses and economic surveys, which provide critical insights for formulating public policies.

Contextualization

Sample surveys are vital tools across different domains, be it public health or marketing. For instance, during the pandemic, researchers used population samples to analyze the spread of the virus and develop effective vaccines. In the business sector, companies conduct sample surveys to grasp consumer preferences, leading to products that align better with their needs.

Initial Activity

To kick off the class, show a brief video (3-5 minutes) illustrating how sample surveys identified market trends during the COVID-19 crisis. After viewing, pose this engaging question to your students: 'In what ways do you think tech companies leverage sample surveys to enhance their services?'

Development

Duration: 60 - 65 minutes

The aim of this stage is to facilitate the practical application of the concepts regarding sample surveys, fostering planning and critical analysis skills, as well as coherent justification of their methodological choices. It also aims to promote teamwork and the direct application of knowledge in real-life contexts.

Topics

1. Understanding sample and census research concepts

2. Exploring sampling methods

3. Advantages and disadvantages of sample research

4. Calculating central tendency measures (mean, median, and mode)

Thoughts on the Subject

Encourage students to ponder the importance of selecting a proper representative sample in research. Discuss how a poor selection can affect outcomes and decision-making in various fields, from health to product development.

Mini Challenge

Mini Challenge: Planning a Sample Survey

Students will be grouped to design a sample survey on a topic relevant to their school, such as gathering students' views on school meal quality. Each group must identify the target population, decide on sample size, select a sampling method, and draft survey questions.

1. Divide the class into groups of 4 to 5 students.

2. Have them select an appropriate topic for the school community.

3. Assist the groups in defining their target population and sample size.

4. Encourage students to choose a sampling method (simple random, stratified, systematic, etc.).

5. Each group should create at least 5 pertinent questions for their survey.

6. Groups must present their survey plans to the class, providing rationale for their choices.

Implement sample research concepts, enhance planning skills, justify methodological decisions, and foster teamwork.

**Duration: 30 - 35 minutes

Evaluation Exercises

1. Clarify the distinction between sample research and census research using real-life examples.

2. List and describe three sampling methods.

3. Calculate the measures of central tendency (mean, median, and mode) for the following data set: 12, 15, 20, 20, 22, 24, 24, 24, 30.

4. Debate the pros and cons of employing a sample survey instead of a census survey for a project of your choice.

Conclusion

Duration: 10 - 15 minutes

The goal of this concluding stage is to help students consolidate what they've learned throughout the lesson, understand the practical implications of sample and census research concepts, and appreciate the value of this knowledge in day-to-day life and the workplace. This conclusion also reinforces the synergy between theoretical knowledge and practical application, nurturing a critical and applied perspective towards learning.

Discussion

Encourage a dialogue among students regarding the significance of ensuring a representative sample in surveys, and how poor choices can skew results and affect decisions. Invite them to share their insights from the mini challenge, discussing obstacles encountered and solutions they devised. Ask how each group approached the sample selection method and what they found challenging while formulating the survey questions.

Summary

Summarize the key concepts addressed in class, such as the differences between sample and census research, sampling methods, and measures of central tendency (mean, median, and mode). Emphasize both the advantages and limitations of each research type, as well as the critical nature of selecting a representative sample.

Closing

Clarify to students how this lesson bridged theory with practice through the mini challenge and fixation exercises. Highlight the relevance of sample surveys in different job markets and various academic fields, from health care to marketing. Reiterate that these skills are crucial not only for academic success but also for professional growth.