# Geometric Sequences / Examples & Practice

After completing the boomerang problem and a short review over Arithmetic Sequences, we started looking a patterns generated by multiplication.

For more help with Arithmetic or Geometric Sequences:  See Cool Math Sequences & Series Lessons 1, 2, 5, 7 is what you are responsible for currently.

Or you may log-in to your TenMarks account and find Arithmetic at the end of the Relations/Functions unit and the Geometric at the beginning of the Exponential Functions unit.

A few practice problems from class today (9/28/11)

# Equations Pre-Test

Students are currently reworking missed problems from last weeks assessment on Relations / Functions.

Today, after completing the boomerang problem, they were given 11 equations to solve.  This will be a pre-test to determine where they stand in ability to solve a variety of equations.  Students, you must remember, these are our goals for the unit!

Rate each one – 3! You’ve got it and do not need more practice.

2!  You’ve almost got it, but could use a little more practice!

1!  Not sure where to start and need some instruction.

# Boomerangs

Yesterday was our first Kentucky Leadership Network meeting for Mathematics.  One of our sessions was an introduction to Lessons created through the Mathematics Assessment Project.  Today, I shared a problem which we were presented as part of our training.

Students had 10-15 minutes to work individually on their solutions.

Tuesday we’ll revisit our responses, then work within small groups to create a better solution.

Students will then receive 4 sample solutions to analyze and discuss.

# Functions Learning Targets

Some sample questins shared in class today.  This may help you get started on your practice test.  See you unit organizer to guide your questions.

# Afterschool Tutoring Begins…

Afterschool sessions begin Tuesday, September 20.  Students should meet in the library and plan for pick up at 3:45.

There will always be a math teacher on-site.

Remember you can also report to Room 148 before school Tuesday – Friday for any help/questions; make-ups.

# Using Differences to Identify Patterns

Students were asked to create 3 tables of values – one of each: linear, quadratic, expoential (not in that order).  At the beginning of class, students will exchange their tables, and determine which function family each tov belongs to.  They may/may not be able to determine if any patterns exist in the radical and rational functions.

examples presented in class…

# Relations & Functions – models & interpreting

functionspractice pages 114, 118, 122, 130

Electric Car
Target #4 model situations using equation, graph, table of values.
Target #1 determine if relation is a function.
Target #6 define dependent and independent variables for a function.

Fountain
Target #4 model situations as a function to relate two quantities.
Target #7 Interpret functions in real world situations

Falling Objects
Target #6 Define dep. / indep. variables of a function.
Target #7 Interpret a function in terms of real-world situation.
Target #2 Evaluate functions for given values of x.

Car Wash
Target #6
Target #1
Target #4
Target #5 Define domain & range of a function, mathematically & real-life context.