Stoichiometry is introduced in this segment, and the students discuss the basics of dimensional analysis.

Premiere Date: July 11, 2016 | Runtime: 00:16:04

Stoichiometry is introduced in this segment, and the students discuss the basics of dimensional analysis.

### Support Materials

Toolkit
Dimensional Analysis Steps
Unit 6A Note Taking Guide & Segment Questions
Crosscutting Concepts
Patterns

Observed patterns of forms and events guide organization and classification, and they prompt questions about relationships and the factors that influence them.

Scale, Proportion, and Quantity

In considering phenomena, it is critical to recognize what is relevant at different measures of size, time, and energy and to recognize how changes in scale, proportion, or quantity affect a system’s structure or performance.

Science & Engineering Practices
Using Mathematics and Computational Thinking

Although there are differences in how mathematics and computational thinking are applied in science and in engineering, mathematics often brings these two fields together by enabling engineers to apply the mathematical form of scientific theories and by enabling scientists to use powerful information technologies designed by engineers. Both kinds of professionals can thereby accomplish investigations and analyses and build complex models, which might otherwise be out of the question. (NRC Framework, 2012, p. 65)

Georgia Standards of Excellence
SC3

Obtain, evaluate, and communicate information about how the Law of Conservation of Matter is used to determine chemical composition in compounds and chemical reactions.

c

Use mathematics and computational thinking to apply concepts of the mole and Avogadro’s number to conceptualize and calculate:
• percent composition
• empirical/molecular formulas
• mass, moles, and molecules relationships
• molar volumes of gases
(Clarification statement for elements c and d: Emphasis is on use of mole ratios to compare quantities of reactants or products and on assessing students’ use of mathematical thinking and is not on memorization and rote application of problem- solving techniques.)

Request Teacher Toolkit

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