|
|
Math
Posts: 104
Location: Henry Clay | I have the coordinates for my points working pretty nicely. (0,0) is in the center of the window. My y-axis goes from -11 to 11 and my x-axis goes from -15 to 15. My points snap to integer coordinates and I have my slope showing as a ration (rise/run) though it is not simplified. I'm now trying to figure out how to have my x and y axis as well as a grid appear. I don't really like the idea of using a graphic so I am looking for a way to create this in code. Any suggestions would be appreciated. |
|
| |
|
Math
Posts: 79
Location: Tates Creek | Jason from Dunbar had some type of loop for creating the grid...i was curious if you (Jason) would mind to post how you did that. I worked too long last night and got nowhere. |
|
| |
|
Math
Posts: 104
Location: Henry Clay | This will draw a grid with 18 pixels = 1 unit... x and y axis in black and gridlines in grey.
lineStyle(1,0xcccccc,100);
for(x=0;x<550;x+=18) {
moveTo(x,0);
lineTo(x,400);
}
for(y=0;y<400;y+=18) {
moveTo(0,y);
lineTo(540,y);
}
lineStyle(2,0x000000,100);
moveTo(270,0);
lineTo(270,400);
moveTo(0,198);
lineTo(540,198); |
|
| |
|
Math
Posts: 104
Location: Henry Clay | Here is what I have so far. Certainly it is a work in progress. Suggestions?
http://staff.fcps.net/scombs/slope.htm |
|
| |
|
Math
Posts: 281
Location: Henry Clay | Thank you for sharing this Steve! |
|
| |
|
Math
Posts: 281
Location: Henry Clay | I observed Steve today using his flash slope project. I think it helped his students understand slope. This was in an Algebra I Part 2 class. |
|
| |
|
Math
Posts: 104
Location: Henry Clay | I have added a few things to my slope project since our last meeting. I'm wondering what other folks have come up with. Here is what I have so far.
http://staff.fcps.net/scombs/slope.htm
I altered my code so that the user can pick the size grid they want. I have an opening slide that reviews the content. I have the equation of the line appearing at the bottom. I also altered the code that simplifies the fraction. I created an array of prime numbers and I just have a single loop that uses primes in this arrar and breaks out of the loop as soon as the primes get larger then the numbers in my fraction. This made my code much shorter. |
|
| |
|
Math
Posts: 104
Location: Henry Clay | I also changed my code so that the line I draw extends beyond both of my point in both directions all the way to the edge of my graph. |
|
| |
|
Math
Posts: 281
Location: Henry Clay | Steve, for some reason the link to your slope is not working for me.
I have not improved upon my slope flash file. |
|
| |
|
Math
Posts: 104
Location: Henry Clay | Strange. It works fine on my computer both at home and at school and it also ran on a student workstation in the lab. However, I have been unable to get the flash program to run on the other teacher workstations that I have tried thus far. Anyone else have any similar problems? |
|
| |
|
Math
Posts: 108
Location: Henry Clay | nope, worked fine on mine. Very cool by the way!!!  |
|
| |
|
Math
Posts: 281
Location: Henry Clay | The program worked on a lab computer in room 122 during PLATO today and was very cool.
Maybe it has to do with flash 8 vs. flash 7?? |
|
| |
|
Math
Posts: 104
Location: Henry Clay | I have posted a version that was saved in a lower version of Flash. See is it works now. |
|
| |
|
Math
Posts: 281
Location: Henry Clay | It works from my school computer now.
Thanks!! |
|
| |
|
Math
Posts: 119
Location: Henry Clay | Steve,
Looks very impressive!! Keep up the good work.
DeeDee |
|
| |
|
Math
Location: IAKSS | Great work, Mr. Combs! |
|
| |
slope
