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Lesson summary for:
Investigating a Crime Scene

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Overview:
Two suspicious dogs and a shredded book provide a perfect combination for focusing on the process of science and to do so with a bit of a chuckle. This powerpoint has been developed so that you can ask for student responses throughout.

Author/Source:
UCMP

Grade:
6-8

Discipline:
Nature and Process of Science

Time:
30 minutes

Teaching tips:
Download this powerpoint to your desktop for use with your students. Pedagogical research indicates that students learn better if they are actively engaged. This investigation reinforces the logic of a scientific approach, emphasizes the importance of posing and testing multiple hypotheses, and provides a good opportunity for discussing the role of assumptions in science, avoiding bias, and the relevance of science in our everyday lives.

Concepts:
Correspondence to the Next Generation Science Standards is indicated in parentheses after each relevant concept. See our conceptual framework for details.

  • Science works only with testable ideas. (P2, P3, NOS2)

  • Scientists strive to test their ideas with evidence from the natural world; a hallmark of science is exposing ideas to testing. (P3, P4, P6, P7, NOS2)

  • Scientists test their ideas by predicting what they would expect to observe if their idea were true and then seeing if that prediction is correct. (P4, P6)

  • Scientists test their ideas using multiple lines of evidence.

  • Scientists often try to generate multiple explanations for what they observe. (P7)

  • Raw data must be analyzed and interpreted before we can tell whether a scientific idea is likely to be accurate or inaccurate. (P4, P5)

  • Scientists try to be objective and work to identify and avoid bias.

  • Hypotheses are potential explanations for what we observe in the natural world. (P6)

  • Anyone can participate in science.

  • Scientific knowledge helps us make decisions that affect our lives every day.

  • Problem-solving and decision-making benefit from a scientific approach.

Teacher background:

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