Transformations in Matter and Energy Carbon TIME is an NSF-funded partnership led by Michigan State University
Activity 5.3 - Explaining How Cows Grow: Digestion (40 min)
Target Student Performance
Students explain how matter moves and changes and how energy changes during digestion in a cow (connecting macroscopic observations with atomic-molecular models and using the principles of conservation of matter and energy).
- (From previous lesson) 3.3 Evidence-Based Arguments for Mealworms Eating
- 5.3 Explaining How Cows Grow: Digestion PPT
- 5.3 Explanations Tool for Cow Digestion (1 per student)
- 5.3 Grading the Explanations Tools for Cow Digestion
- (Optional) 5.3 How do Digest Food? Reading (1 per student)
- Animals Matter Tracing Tool (1 per class)
- Assessing the Animals Matter Tracing Tool
- Cow 11 x 17 Poster
- (Optional) Example Animal Explanations Handout (1 per student or per group)
- Digestion and Biosynthesis of Carbohydrates 11 x 17 Poster
- Digestion and Biosynthesis of Fat 11 x 17 Poster
- Digestion and Biosynthesis of Protein 11 x 17 Poster
- Three Questions 11 x 17 Poster (1 per class)
- Three Questions Handout (Color Version)
- Three Questions Handout (BW Version)
Print one copy of the 5.3 Explanations Tool for Cow Digestion and 5.3 How do Digest Food? Reading (if you choose to use it) for each student. Prepare a computer and a projector to display the PPT. Print and hang the Digestion and Biosynthesis 11 x 17 Posters. In this activity, your students will need to use the Three Questions Explanation Checklist on the back of the Three Questions Handout. Be sure to have this available to students and see the notes in the Modifications at the end of the Activity for ideas about how to use it.
Use 5.3 Grading the Explanations Tools for Cow Digestion to grade student responses. This worksheet has “grading” in the title (instead of “assessing”) because at this point, students can be held accountable for correct answers. If students are still struggling with these concepts, you may want to revisit parts of the activity they are finding difficult. Use Assessing the Animals Matter Tracing Tool to grade the tracing tool.