jensen9

TEAM Ke ViVa La RAZA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Follow the directions on the Vertical Motion page, to complete each of the sections below. The Word Problem: How would you solve for time in the problem your group was assigned? Prepare the equation to solve for time, defining the variables and supporting your choice in equation

You are competing in the field target event at a hot-air balloon festival. From a hot-air balloon directly over a target, you throw a marker with an initial downward velocity of -30 feet per second. from a height of 200 feet. How many seconds will it take the marker to reach the target? we choose the vertical motion problem when the an object is thrown. the standard form for our problem is

The Parabola: Use what you know about parabolas to predict the shape of the graph. What will it look like, and how do you know?

a=-16 b=-30 c=200

The affect of a will change it, being upside down and our parabola will become skinnier. The affect of c will change our parabola by shifting the vertex up the y-axis 

The Math: Pretend you are the teacher, and this section is your lesson. Post the calculations required to graph the equation and find the solution, and show all the steps to doing so. Teach your audience all the important parts of the graph and explain what they mean for the problem you were given. We used the quadratic formula and the vertical motion formula of throwing to solve for x, we used this method because its our easiest way of solving the word problem.  The Solution is -4.6 or 2.8, the better answer is 2.8.

The Solution and The Meaning: What do the different parts of the graph mean? What does the solution mean? Our solution tells us how long marker will hit the target. Vertex is the highest point of the object thrown in the air. Y intercept is the point of the parabola that intersects with the y-axis. Roots are the points of the x-axis where the parabola hits and leaves the x-axis. It was in the air for 2.8 seconds. Because we used the quadratic formula to solve our word problem.

Reflection How did it feel to do the work and pretend to be the teacher? Do you think you understand the material more, now? Why or why not? What the solution means to the problem, is that we now know how long it will take for the object to hit the ground. The vertex represents the highest or lowest point on the graph, so we know how high or low the object went. The y-intercept is where the line passes through the y-axis, so we know when the object passed through it. The roots are the 2 points that cross the x-axis, so we know how long it stays in the air. Depends on how wide or skinny the parabola is, if its skinny, it will be short, if its wide, it will stay in the air longer.

Jose: I found the whole project difficult. It was too hard and challenging. Next time, what would I do smoother is call each other to know is what time I can go on my Wiki and make changes without 2 people on it and changing what i had. This project has made me understand quadratic equations and vertical motion better. It has increased my knowledge into doing this better, doing the work was OK for me. I pretend that i am that teacher, because it feels like I'm overpowering everyone in my group.

Paul:What i found difficult in this project was during the computer work, cause it was mostly on the computer, and it was hard. What i would do to make it better is cooperate, this project did not make me understand anything, because it feels the same. It also feels the same when you use collaboration its more challenging cause we each have different answers. I didn't really feel like a teacher, i was like the assistant.

Karen: Found the whole project difficult because at first I was confused because I didn't know what the question was until I figured we choose on the first day, next time I would asked my table members. This project was better cause it was part by part.I didn't pretend or feel like a teacher, I was more like a student learning piece by piece as a recorder.