When people hear my story, their eyes glaze over and they turn off listening. Where P1 is a few minutes, P2 is a few minutes where P1 is overnight (20 hours), P2 is 2-3 days P1 is 5 days, P2 is 11 days P1 is 10 days, P2 is 22 days and finally, P1 is 5+ months, P2 is 5+ months. My experiments have shown where P1 is greater, P2 is greater. P1 is the time period in days or partial days wherein the car battery is completely disconnected P2 is the time period, upon reconnecting the battery, wherein the check engine light remains OFF until it illuminates ON. I've discovered there may be some sort of linear relationship between two time periods (P1 and P2), and I'd like to show it on a graph and I'm seeking help in that regard. I've assumed my problem is not typical and I'm searching for a clue, any clue. "My question may not seem mathematical in nature, but here goes: mechanics and auto technicians are stumped trying to find the problem with my car engine that results in the check engine light being ON all the time. "Can't we plot parametric equations in this plotter? Thank you for making Transum free and available on the internet. I find it mesmerizing that an equation can give amazing results. When writing the equation, cos(x²)=sin(y²) the following graph is plotted. For now, I love plotting them even though I don't understand them well. When I know more about Trigonometry I will understand why these graphs are the way they look. Although I don't understand much about trigonometric graphs, I have plotted some trigonometric graphs with beautiful patterns. I am very thankful for Transum and through this, my passion for math has increased. "Hello, I am Soumi Dana, currently studying in 8th grade. Unfortunately it only plots the positive answer to the square root so the circles would not plot. "Absoultely brilliant got my kids really engaged with graphs. "First of all, congratulations for the beautiful job! But I have a question: is there a way to save/download the graphics? thus adjusting the coordinates and the equation. "Would be great if we could adjust the graph via grabbing it and placing it where we want too. "It would be nice to be able to draw lines between the table points in the Graph Plotter rather than just the points. Whether or not the standalone graphing calculator goes away, one hopes that the little homebrew scene it fostered-still going strong after two decades!-sticks around.Last day before half term yr 8 were using Graph Plotter to attempt the challenges - all were successful /uzNjAszZxs- Heather Scott October 22, 2017 (TI Education Technology President Peter Balyta, in comments to USA Today, tried to make the case, essentially, that the company’s calculators have “only the features that students need in the classroom, without the many distractions that come with smartphones, tablets and internet access.” Fair.) “It’s a huge source of inequity, and it’s just not the best way to learn.” “We think students shouldn’t have to buy this old, underpowered device anymore,” Desmos CEO Eli Luberoff told Quartz earlier this month. And it’s even gotten the Smarter Balanced Assessment Consortium, one of the newer organizations offering standardized tests, to agree to use its online app instead of TI’s outdated, costly calculators.ĭesmos’ PR game is strong-in the past two weeks, the company has earned write-ups in Quartz, CNN Money, and USA Today-and while the app still has a ways to go before it topples the king (there are a lot of standardized tests out there) it's off to a good start. The online tool, which is paid for by schools through partnerships, has already proven a budding success. Recently, the Silicon Valley startup Desmos has been trying to take on the calculator industry through a smart mixture of modern technology and business strategy. Smartphones, clearly, beat the snot out of the TI calculators technically, but Texas Instruments, the company, apparently was very good at lobbying for the calculators’ continued existence in testing environments.īut things are changing … finally. As I noted a while back, I used my TI-82 mostly to play games. Instead, maybe 10 percent of its functionality gets used in most cases, and generally only in the context of math classes. But our education industry isn’t that forward-thinking. If the TI-84+ calculator that has become a fact of life for many students were used as a way to teach teens basic programming skills through a technical-but-ultimately-harmless interface, perhaps in the way that the Raspberry Pi has gained currency in the education world, it would be a great tool for education. Of all the artificial monopolies created by government and standards bodies, the one created for the graphing calculator by standardized testing bodies is perhaps the most disappointing.
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