8th Grade
Geometric Sequences 6.7
Big Ideas Algebra textbook
We will end Chapter 6 (Exponential Equations and Functions) with the geometric sequence because some geometric sequences behave like exponential functions.
Solutions to Wednesday, April 1 assignment: click on the link
Learning Tool: Big Ideas textbook
Goal: I can write an equation for the nth term of a geometric sequence by using the first term and the common ratio and noticing that to find the nth term we would use the common factor n -1 times
Notes: click on the link
(You can follow along in your Big Ideas Algebra textbook beginning on page 308 . You can also view the videos from Khan Academy’s Algebra I course in the unit entitled Sequences, and beginning with the section “Intro to Geometric Sequences)
Extending a geometric sequence
You add a number to extend arithmetic sequences and you multiply by a number to extend geometric sequences
Examples of extending geometric sequences
Examples of using geometric sequence formulas
Writing an exponential function that describes a geometric sequence: writing an explicit formula
Connecting the arithmetic sequence and geometric sequence
Assignment: Big Ideas textbook, pages 310-311; #s 4 – 28 (all)
Due Date: Monday, April 6, high noon
7th Grade
Volumes of Pyramids 7.3
Big Ideas textbook, Lesson 7.3
Solutions to Wednesday’s assignment, textbook, page 308-309 (please click on the link)
Learning Tool: Big Ideas textbook
Goal: I can find the volume of a pyramid by the using a formula
Background Notes (please click on the link)
Recall how to find the volume of any prism
Here is the main idea of this lesson about finding the volume of any pyramid: the textbook tells us the volume of a pyramid is 1/3 (one-third) the volume of a prism with the same base and the same height of the pyramid.
Here is the example of finding the volume of a pyramid by first finding the volume of a prism with the same base and same height: volume of pyramid = 1/3 of volume of prism
Textbook Notes (page 312 of our textbook)
Assignment: Big Ideas textbook, page 314-315, #s 1 -15
Due Date: Monday, April 6, high noon