Brik by Brik

Disassembling and Reassembling Objects with Small Pieces

2nd Grade

• Ask and/or identify questions that can be answered by an investigation.

• Define a simple problem that can be solved through the development of a new or improved object or tool.

• Plan and conduct an investigation collaboratively to produce data to serve as the basis for evidence to answer a question.

• Make observations (firsthand or from media) and/or measurements of a proposed object or tool or solution to determine if it solves a problem or meets a goal.

• Record information (observations, thoughts, and ideas).

• Analyze data from tests of an object or tool to determine if it works as intended.

• Use quantitative data to compare two alternative solutions to a problem.

• Generate and/or compare multiple solutions to a problem.

• Identify arguments that are supported by evidence.

• Distinguish between opinions and evidence in one's own explanations.

• Listen actively to arguments to indicate agreement or disagreement based on evidence, and/or to retell the main points of the argument.

• Construct an argument with evidence to support a claim.

• Describe how specific images (e.g., a diagram showing how a machine works) support a scientific or engineering idea.

• Communicate information or design ideas and/or solutions with others in oral and/or written forms using models, drawings, writing, or numbers that provide detail about scientific ideas, practices, and/or design ideas.

Students observe objects may break into smaller pieces, be put together into larger pieces, or change shapes.

Matter exists as different substances that have observable different properties. Different properties are suited to different purposes. Objects can be built up from smaller parts.