Ecosystem Interactions Class Discussion Presentation in Blue Green Lined Styl...
Interactive presentation
1. Kimberly Hefty
EdTech 541
Image courtesy of http://blog.raptivity.com/2012/04/thinning-line-betweeninteractivity-and-interaction/
2. Students are expected to:
A1.2.B
Recognize the multiple uses of variables, determine all
possible values of variables that satisfy prescribed
conditions, and evaluate algebraic expressions that
involve variables.
By U.S. Navy photo by Journalist 2nd Class Mat Sohl. [Public domain], via
Wikimedia Commons
5. 1. Make sense of problems & persevere in solving
them.
Image courtesy of http://plsonline.wordpress.com/2008/05/02/new-courseteaching-algebra-to-middle-school-students/
6. 2. Reason abstractly and quantitatively.
Image: http://commons.wikimedia.org/wiki/File:A
7. 3. Model with mathematics.
Image: See page for author [Public domain], via Wikimedia Commons
8. Image: By UNCTAD [CC-BY-SA-2.0 (http://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons
9.
Image: By Ricardo Cancho Niemietz (talk).Ricardo Cancho Niemietz at en.wikipedia [Public domain], from Wikimedia Commons
10. Click to watch video
Arithmetic with Polynomials and
Rational Expressions A –APR
14. Variables are letters or symbols used to represent
numbers
Iantresman at English Wikipedia [GFDL (http://www.gnu.org/copyleft/fdl.html) or
CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia
Commons
17. •
By HB (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0-2.5-2.0-1.0
(http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons
23. Examples of
exponents/power
s
answer
5^3 = 125
answer
(-2)^4 = 16
By Ryan Somma (Flickr: Multiplication Machine) [CC-BY-SA-2.0
(http://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons
31. 7 x 2 + (7 + 3 x (5 – 2)) ÷ 4 x 2
7 x 2 + (7 + 3 x (3)) ÷ 4 x 2
7 x 2 + (7 + 9) ÷ 4 x 2
7 x 2 + (16) ÷ 4 x 2
Click 14 + to See ÷ 4 x 2 & Steps
Here (16) Solution
14 + 4 x 2
14 + 8
22
For more explanation of these steps go:
HERE(VIDEO)
32. Resources
Resources:
Graham, A. T., & Thomas, M. O. (2000). Building a versatile understanding of
algebraic variables with a graphic calculator. Educational Studies in
Mathematics, 41(3), 265-282.
Lee, J. K., Licwinko, S., & Taylor-Buckner, N. (2013). Exploring Mathematical
Reasoning of the Order of Operations: Rearranging the Procedural
Component PEMDAS. Journal of Mathematics Education at Teachers College,
4(2).
Roblyer, M.D. & Doerling, A.H. (2013). Integrating educational technology into
teaching (6th ed.). Upper Saddle River, NJ: Pearson.