1. Principals’ Meeting May 14, 2013
Secondary Mathematics Presentation
Josh Keen
Kathleen McKinley

2. Goal: Secondary Math Segment
Connect PA Common Core Content & Practice
Establish awareness of instructional delivery of PACC with embedded use of technology
Enhance understanding of how handheld technology supports learning
Begin discussion of how to enhance instructional pedagogy

3. Tiger Age vs. Weight
Please use the technology handout to complete the Tiger problem

4. Discussions A one week old tiger cub would weigh about 2.3 Kilograms
A 10-week-old tiger cub would weigh about 8.9 kilograms.
Between 7 and 8 weeks
As age increases, weight increases.

5. Tiger Facts http://www. seaworld
If pattern in problem continues: pounds in 1.5 years
Male tiger cubs weigh about 90 to 105 pounds by six months of age and females are about 30 pounds lighter.
Young male tigers will continue to grow and develop muscle until they are about five years 
Adult male Amur tigers (Panthera tigris altaica) may weigh up to 300 kg. (660 lb) and measure about 3.3 m. (10.9 ft) in length. Females are smaller, weighing between 100 to 167 kg (200 to 370 lb) and measure about 2.6 meters (8.5 ft) in length.

6. Extension Questions
Use the research and data to justify whether it would make sense to connect the graph points.
It makes sense to connect the data because there are tiger cubs whose ages are between weeks
How can you use the graph and research to justify your response to part d. “Do you expect this pattern to continue indefinitely? How can the variance in growth over time be explained?
As the cubs approach adulthood, we would expect the weight to level off at some point. The weight will not increase indefinitely

7. PACC Standard Standard: Grade 7 Expressions and Equations
CC B.3 - Model and solve real-world and mathematical problems by using and connecting numerical, algebraic, and /or graphical representations
Anchors:
Mo7.B-E.2.1.1
Mo7.B-E.2.1.2
Mo7.B-E.2.1.3
Mo7.B-E.2.3.1 A
DOK:
Solve word problems leading to equations of the form px + q = r and p(x + q) = r, where p, q, and r are specific rational numbers.
Determine the reasonableness
of the answer(s) in problem solving
situations.
Determine the reasonableness of an answer(s), or interpret the solution(s) in the context of the problem.

8. Mathematical Practice
Construct viable arguments and critique the reasoning of others
Reason abstractly and quantitatively
Model with mathematics
Attend to precision
Use appropriate tools strategically

10. Thank you! For your Perseverance and Participation!
What questions do you have for us?