sometimes two variables in the ranges f(x) = mx + b or y = mx + b one can predict how the other changes if you got this distinct impression *** Starts at 2:57 in video ... you're in need of some linear regression DATA FLYER TOOL To minimize error in your prognostication calculate the least squares equation The sum of the squares This can be accomplished with ????? or you can just uses some matrices Beta nought is where you cross the y B B Beta nought is b, the intercept... beta one is the slope of the line 0 1 Beta one is m, the slope. --------- ------- intercept slope *** Finishes at 3:24 in video ...Transcribed Stat Rap Lyrics ...
Mitch Resnick's TED Talk on Scratch, Mother's Day and teaching children how to use scratch (from STEM to STEAM). Learning to code and coding to learn. Game programming and keeping score.
Timeline: 0:00 - Introduction, new model, adding stocks and flows 1:48 - Defining equations 5:39 - Running the model & seeing output 7:36 - Placing a graph on the screen and running live with Synthesim 11:07 - Managing datasets 12:29 - Refining the model with auxiliary variables & information arrows 15:48 - Defining new equations 18:53 - Units check & run 20:24 - Causal Tracing 22:06 - Conclusion & background
Compare what we did today to NetLOGO: 1. NetLOGO would only need one turtle to do this. 2. Or NetLOGO could use 40 turtles to do the same thing that Scratchy did, but simultaneously drawing the 40 different circles. Choreography! 3. rt 15 in NetLOGO is the same as turn 15 degrees in Scratch. 4. move 10 steps in Scratch is the same as fd 10 in NetLogo. 5. repeat 40 in Scratch is the same as: repeat 40 in NetLOGO [ statements to be repeated, between [ ] characters... ]