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Decomposers | Unit at a Glance

Unit at a Glance

Decomposers Unit

Note: Symbols designate activities where there are options about which activities to do:

 Repeating activities: The same activities are also in the Plants and Animals units. If you have already taught these activities in another unit, do not teach them again unless you specifically want to do them as a review with your students.

 Turtle symbols indicate more and less demanding activities. See http://media.bscs.org/carbontime/files/Turtles_07.05.16-1.pdf.

Pre Lesson – Bread Mold Investigation Set Up (30 min)

  • Activity Pre 1.1: Bread Mold Investigation Set Up (30 min)

Lesson 1 – Pretest and Expressing Ideas (50 min)

  • Activity 1.1: Decomposers Unit Pretest (20 min)
  • Activity 1.2: Expressing Ideas about How Things Decay (30 min)

Lesson 2 – Foundations: Zooming into Organisms (2 hr 5 min)

  • Activity 2.1: Zooming into Plants, Animals, and Decomposers (40 min)
  • Activity 2.2: Molecules Cells Are Made of (45 min)
  • Activity 2.3: Molecules in Cells Quiz (20 min)
  • Activity 2.4: Questions about Decomposers (20 min)

Lesson 3 –Investigating Bread Molding (2 hr 40 min)

  • Activity 3.1: Predictions about Bread Molding (50 min)
  • Activity 3.2: Observing Bread Molding (60 min over 2 days)
  • Activity 3.3: Evidence-Based Arguments for Bread Molding (50 min)

Lesson 4 – Explaining How Decomposers Move and Function (1 hr 20 min)

  • Activity 4.1: Molecular Models for Decomposers Moving And Functioning: Cellular Respiration (40 min)
  • Activity 3.2: Explaining How Decomposers Move and Function: Cellular Respiration (40 min)
Lesson 5 – Explaining How Decomposers Grow (1 hr 20 min)
  • Activity 5.1: Tracing the Processes of Decomposers Growing: Digestion and Biosynthesis (40 min)
  • Activity 5.2: Explaining How Decomposers Grow: Digestion and Biosynthesis (40 min)
  • Activity 5.3: Explaining How Fungi Grow: Digestion and Biosynthesis (40 min)

Lesson 6 – Explaining How Decomposers Growing, Moving, and Functioning (varies)
  • Activity 6.1: Bacteria Decomposers in the Soil (varies)
  • Activity 6.2: Explaining Other Examples of Decomposers Growing, Moving, and Functioning (50 min)
  • Activity 6.3: Explaining How All Decomposers Grow, Move, and Function (50 min)
  • Activity 6.4: Decomposers Unit Posttest (20 min)