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Assessment

Junkyard Analysis worksheets

mixtures_and_solutions_answer_sheet.pdf

Duration

Day 1-30 minutes
Day 2-10 minutes

Essential Question

How do you distinguish between a mixture and a solution?

Instructional/Environment Modifications

Extra time and access to a word processor can be given. Other modifications may be made to satisfy the needs of the student's IEP.

Procedure

Day 1-Students go to the computer lab. Activity worksheets are handed out and solutions and mixtures are reviewed orally. Students are told to type in the web site address, http://www.udel.edu/sine/students/mixtures/, and double click on "junkyard analysis." They are told to read the directions and use the program to fill in the table on the worksheet and answer the two questions.

Day 2-Students bring their worksheets to class. On the back of the worksheet, students draw a Venn diagram labeling one-circle mixture and the other circle solution. This is also drawn on the overhead projector. Students are asked how mixtures and solutions are similar. Correct answers are written in the Venn diagram. Students are asked how solutions and mixtures differ. Correct answers are written in the Venn diagram. Students then hand in their worksheets.

Reflections and Feedback

I graded the worksheet by giving one point for each item, one point for what each item contains, and 1 point for identifying each item as a mixture or solution. I graded each question out of ten points.

Students found that this activity was fun and said that it really showed them the difference between a solution and a mixture.

Student Work

The following are samples of completed Junkyard Analysis Worksheets:

Sample 1

Sample 2

Sample 3

Related Resource

http://www.udel.edu/sine/students/mixtures/

Description

This learning experience shows students how to distinguish between a mixture and a solution using an online junkyard analysis activity, a worksheet, and a Venn diagram used to summarize similarities and differences.

Related Academic Standards

New York State

MST1.C.SI3A Students use various means of representing and organizing observations (e.g., diagrams, tables, charts, graphs, equations, matrices) and insightfully interpret the organized data.

MST2.C.IS1F Students model solutions to a range of problems in mathematics, science, and technology using computer simulation software.

9-10.WHST.7 Conduct short as well as more sustained research projects to answer a question (including a self generated question) or solve a problem; narrow or broaden the inquiry when appropriate; synthesize multiple sources on the subject, demonstrating understanding of the subject under investigation.

11-12.WHST.7 Conduct short as well as more sustained research projects to answer a question (including a self generated question) or solve a problem; narrow or broaden the inquiry when appropriate; synthesize multiple sources on the subject, demonstrating understanding of the subject under investigation.

6.SP.2 Understand that a set of data collected to answer a statistical question has a distribution which can be described by its center, spread, and overall shape.

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