Sampling rocks
http://www.sciencenetlinks.com/Lessons.cfm?DocID=110
A lesson plan for Grades K–2 Science and Mathematics
The purpose of this Science NetLinks lesson is for students to learn about sampling through an investigation of rocks found in the schoolyard. In grades K-2, learning can begin that will eventually lead to students' having a good grasp of everyday statistics.
In this lesson, students collect and analyze a sampling of rocks from the schoolyard. Students array the collected rocks by characteristics such as size, weight, and color, to see if any generalizations can be made about the types of rocks that can be found in the schoolyard. Students are introduced to the notion of a sample, and how the size and method of collection of a sample can bias findings.
North Carolina Curriculum Alignment
Mathematics (2004)
Grade 1
- Goal 2: Measurement - The learner will use non-standard units of measure and tell time.
- Objective 2.01: For given objects:
- Select an attribute (length, capacity, mass) to measure (use non-standard units).
- Develop strategies to estimate size.
- Compare, using appropriate language, with respect to the attribute selected.
- Objective 2.01: For given objects:
Grade 2
- Goal 2: Measurement - The learner will recognize and use standard units of metric and customary measurement.
- Objective 2.01: Estimate and measure using appropriate units.
- Length (meters, centimeters, feet, inches, yards).
- Temperature (Fahrenheit).
- Objective 2.01: Estimate and measure using appropriate units.
Kindergarten
- Goal 2: Measurement - The learner will explore concepts of measurement.
- Objective 2.01: Compare attributes of two objects using appropriate vocabulary (color, weight, height, width, length, texture).
Science (2005)
Grade 1
- Goal 2: The learner will make observations and use student-made rules to build an understanding of solid earth materials.
- Objective 2.01: Describe and sort a variety of earth materials based on their properties:
- Color.
- Hardness.
- Shape.
- Size.
- Objective 2.02: Describe rocks and other earth materials in more than one way, using student-made rules.
- Objective 2.01: Describe and sort a variety of earth materials based on their properties:
Kindergarten
- Goal 3: The learner will make observations and build an understanding of the properties of common objects.
- Objective 3.02: Develop and use a vocabulary associated with the properties of materials:
- Color.
- Size.
- Shape.
- Texture.
- Objective 3.02: Develop and use a vocabulary associated with the properties of materials:



