Unit Title: Growing, Growing, Growing 5.1 and 5.2 & Common Core Units Investigations 1
Suggested Time: 6 Days

Enduring understanding (Big Idea): Write expressions involving repeated multiplication using exponents, simplify fractions and decimals raised to powers, apply properties of integer exponents to generate equivalent expressions; use cube root symbols to represent solutions

Essential Questions: How to use the patterns in powers to estimate the ones digit for unknown patterns? What do you do to multiply numbers with the same base? What do you do to raise a power to a power? What do you do to divide numbers with the same base? How do you find the cube root of a number?

Unit Plans
Common Core Standards Alignment
Connection to 2003 Standards
Investigation 5
Patterns with Exponents
Problems 5.1, 5.2
Math Reflections
Work with radicals and integer exponents8.EE.1- Know and apply the properties of integer exponents to generateequivalent numerical expressions.
8.EE.3- Use numbers expressed in the form of a single digit times an integer power of 10 to estimate very large or very small quantities,and to express how many times as much one is than the other.

8.EE.4-Perform operations with numbers expressed in scientific notation,including problems where both decimal and scientific notationare used. Use scientific notation and choose units of appropriatesize for measurements of very large or very small quantities

Define, evaluate, and compare functions
8.F.3- Interpret the equation y = mx + b as defining a linear function,whose graph is a straight line; give examples of functions thatare not linear
Goal 1.01
CC Investigation 1: Negative Exponents
Problems 1.1, 1.2
Work with radicals and integer exponents8.EE.1- Know and apply the properties of integer exponents to generate equivalent numerical expressions.
8.EE.2 -Use cube root symbols to represent solutions toequations of the form and x3 = p, where p is a positive rationalnumber. Evaluate cube rootsof small perfect cubes.
Goal 1.01

Prior Knowledge: Looking for graphical or symbolic models to describe a pattern in data; Reasoning relationships such as connections among attributes of geometric figures; representing relationships with words, tables, graphs and equations; exploring the significance of shapes of graphs and patterns in tables; attaching meaning to symbols in linear equations of the form y = mx + b; using exponents to express large and small quantities

Mathematical Practices Standards for Common Core
1-Make sense of problems and persevere in solving them 2-Reason abstractly and quantitatively 3-Construct viable arguments and critique the reasoning of others 4-Model with mathematics 5-Use appropriate tools strategically 6-Attend to precision 7-Look for and make use of structure 8-Look for and express regularity in repeated reasoning


Essential Terms Developed in This Unit
Useful Terms Referenced in This Unit
Terms Developed in Previous Unit
Base
Cube Root
Exponent
Law
Growing, Growing, Growing



Exponential equations

Now that the students have a solid understanding of linear relationships -- relationships based on repeated addition -- Growing, Growing, Growing expands that knowledge to include exponential relationships, which are relationships based on repeated multiplication. Students study various real-life scenarios in which exponential relationships exist, such as population growth, the growth of bacteria, the spread of an invasive plant species across a pond. They learn to move fluently among the four ways to represent these relationships, which are words, tables, graphs and equations.

  • Example of a linear function: y = 2x + 7

  • Example of an exponential function: y = 4^x + 7

For an in-depth explanation of unit goals, specific questions to ask your student and examples of core concepts from the unit, go to Growing, Growing, Growing.

Online resources for Growing, Growing, Growing*

Exponents

Exponential Functions


Other online resources

s of Exponents
Doubling time

Evaluate

Linear growth

Standard form
Factor

Rate

Ratio

Relationship

Power

Scientific notation

Resources

Lab-Sheet

Additional Practice/Skills Worksheets

CMP2 Website –online & technology resources

Formal Assessment

  • Check-Ups
  • Partner Quiz
  • Unit Test
Assessment Options

  • Notebook check
  • Multiple-Choice
  • Question Bank
  • ExamView CD-ROM
Parent Guide-Unit Letters

Spanish Assessment Resources

PHSchool.com

TeacherExpress CD-ROM

LessonLab Online Courses

Unit Technology Tips
Goals of the Unit
• Recognize situations in which one variable is an
exponential function of another variable
• Recognize the connections between exponential
equations and growth patterns in tables and
graphs of those equations
• Construct equations to express exponential
patterns that appear in data tables, graphs, and
problem conditions
• Understand and apply the rules for operating
on numerical expressions with exponents
• Solve problems about exponential growth and
decay from a variety of different subject areas,
including science and business
• Compare exponential and linear relationships



Homework Help