Lesson Materials

Per Class

• 30 glass marbles in a clear plastic cup

• 30 magnetic marbles attached to the inside and outside of a cutaway cup edge

• steel baking tray

• 30 magnetic marbles with flat bottoms

• whiteboard

• markers

• chart paper of key ideas from Lesson 4

• chart paper

• sample container with an airtight lid

Per Student

• science notebook

Prep

Review 

• Lesson Plan

• Slides

• Assessment or answer keys (if required)

Prepare 

• Marble Manipulatives Introduction

  • Group size: Whole class

  • Setup: Fill a clear plastic cup with 30 glass marbles. Cut a second plastic cup in half lengthwise. Attach a line of magnetic marbles on the inside and outside of the cup along the cutaway edge on one of the cup halves (as shown on slide E).

• Marble Manipulatives Activity

  • Group size: 3

  • Setup: Prepare the following for each group: a steel baking tray with a plastic cup of 30 glass marbles on it and 30 magnetic marbles attached to it.