Decomposers Activity 3.2 Overview

Target Student Performance

Students record data about changes in mass and BTB when bread molds and reach consensus about patterns in their data.

Resources You Provide

Resources Provided

Recurring Resources


Prepare the BTB, digital balances, Petri dishes, containers, and the materials from the Pre-Lesson. Use the instructions on the BTB Information and Instructions Handout for details about how to prepare the BTB. If you plan to use the poster to record student data, re-post the poster on the wall. Print one copy of 3.2 Observing Bread Molding Worksheet for each student. Prepare a computer with an overhead projector to display the PPT and video. You may want to print one copy of BTB Color Handout for each group, but this is optional.