Lesson Plan:

# We've Got the Dirt!

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September 24, 2015
Subject
September 24, 2015

## Learning Objectives

Students will be able to identify and describe the different types of soil.

## Lesson

### Introduction (10 minutes)

• Explain to students that today they will be learning about the different types of soil.
• Give each student a copy of the first page of the Types of Soil worksheet.
• Read aloud, or have volunteers read aloud, the worksheet, pausing after each type to discuss.
• On the board or a piece of chart paper, make a graph with 3 rows labeled 1, 2, and 3 and 3 columns labeled "Particle Size?", "Feels?", and "Dries?"
• Divide students into pairs or small groups.

### Explicit Instruction/Teacher Modeling (10 minutes)

• Explain that the groups will be observing the 3 soil samples for particle size, texture, and how it holds water.
• Demonstrate using the hand lens, model observing particle size of a given sample.
• Explain the difference between clumps and particles, and model breaking a clump down into particles.
• Demonstrate rubbing a small amount of soil between your thumb and forefinger and describe what the students might feel using vocabulary from the worksheet.
• Demonstrate dropping one small drop of water into the soil sample and observe with the hand lens.
• Describe the changes to the soil and how quickly the water absorbs, runs off, or dries.

### Guided Practice/Interactive Modeling (20 minutes)

• Give each group a paper plate and have one of the students divide it into thirds and number each section.
• Give each group a dropper, water and a hand lens.
• Give each group a cup with the first kind of soil, sand, in it. Do not tell them what type of soil is in the cup.
• Have each student examine the sample with the hand lens, breaking up clumps with the tooth pick.
• Discuss the students' observations and record them on the chart.
• Have the students rub the soil between their fingers and record their observations on the chart.
• Have the students drop one drop of water onto the sample and observe it with the hand lens.
• Record their observations on the chart.
• Repeat this procedure with the other 2 samples.

### Independent Working Time (10 minutes)

• Have the students put their materials away or to the side.
• Ask each group to discuss the observations recorded on the chart and to compare them to the information in the worksheet.
• Have the groups decide which type of soil is in each numbered cup.
• Ask a spokesperson or volunteer from each group to tell the class the name of each sample and to explain how the group came to that conclusion.

## Extend

### Differentiation

• Enrichment: Rather than a teacher created chart, let advanced learners create their own record keeping document. Have them repeat this activity with soil samples collected at home or at school.
• Support: Place struggling students in a group with an adult or strong peer leader. Divide the sample observations into 3 separate, shorter activities.

## Review

### Assessment (5 minutes)

• Complete the second page of the Types of Soil worksheet.

### Review and Closing (5 minutes)

• Have students tell each other in their groups the descriptions of the types of soil.