Unit 21: Foundations of Scientific Inquiry and Experimentation

Day 18 of 30

Drawing conclusions from evidence

3-5Science

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Learning Objective

Students will be able to explore drawing conclusions from evidence.

Today's Lesson

In this lesson, we'll explore drawing conclusions from evidence. Scientific inquiry allows us to investigate and explain natural phenomena.

A scientific conclusion interprets results and evaluates the hypothesis. Strong conclusions: state whether the hypothesis was supported or not supported (not "proven right or wrong"); cite specific data from results; explain why the results support or refute the hypothesis using scientific reasoning; acknowledge sources of error and their potential impact; and suggest improvements or further experiments. Distinguish between correlation and causation—two variables may change together (correlate) without one causing the other. Consider whether results are generalizable: can you apply conclusions beyond the conditions of your experiment? A conclusion is not just a summary of what you did—it is your scientific interpretation of what your data means.

As you work through today's material, pay attention to the examples and try to identify the patterns or strategies being used. This will help you apply these concepts to new problems.

Take notes on key points and make connections to what you've already learned in previous lessons.

Key Terms
Investigate

To examine systematically through observation and experiment

Evidence

Observable facts that support or refute a claim

Activities
Instructions
1. Read the background information on drawing conclusions from evidence. 2. Form a hypothesis before beginning. 3. Conduct the investigation following procedures. 4. Record observations and analyze results.
Materials Needed
  • Lab notebook
  • Investigation materials
  • Safety equipment if needed
Practice Problems
1

Based on today's lesson, what is one thing you observed or learned?

Hint: Think about the main topic.
2

How could you test or investigate this topic further?

Hint: What experiment could you do?
3

Why is this topic important in the real world?

Hint: Think about everyday applications.

Teaching Tip

For this age group: Balance direct instruction with collaborative activities. Allow students to explain their thinking and make connections to prior knowledge when exploring drawing conclusions from evidence.

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