tag:blogger.com,1999:blog-1091979517567705761.post3722634688599052537..comments2023-10-03T04:20:03.184-06:00Comments on Math = Love: Finding X-Intercepts and Y-InterceptsSarah Carter (@mathequalslove)http://www.blogger.com/profile/11839095945000612533noreply@blogger.comBlogger14125tag:blogger.com,1999:blog-1091979517567705761.post-64129130931693507722017-01-03T09:40:28.175-06:002017-01-03T09:40:28.175-06:00Thanks for the helpful lesson and information. I l...Thanks for the helpful lesson and information. I linked this page to a video I created on this topic. MooMooMath and Science<br />CheersMooMooMath and Sciencehttps://www.blogger.com/profile/03699733300993589644noreply@blogger.comtag:blogger.com,1999:blog-1091979517567705761.post-56104526494435068912016-02-02T13:08:48.270-06:002016-02-02T13:08:48.270-06:00Thanks for sharing this helpful tip! Thanks for sharing this helpful tip! Sarah Carter (@mathequalslove)https://www.blogger.com/profile/11839095945000612533noreply@blogger.comtag:blogger.com,1999:blog-1091979517567705761.post-53205961178526832942016-01-29T09:55:23.596-06:002016-01-29T09:55:23.596-06:00I feel that I should point out that the Value func...I feel that I should point out that the Value function (in the Calc/2nd Trace menu) is also present in the Trace environment, itself. If you press Trace (rather than 2nd Trace), you can type a number followed by [Enter] and it will give you the same result as the Value function.Roberthttps://www.blogger.com/profile/10632549175296267400noreply@blogger.comtag:blogger.com,1999:blog-1091979517567705761.post-82989846326003943492016-01-29T09:48:57.089-06:002016-01-29T09:48:57.089-06:00I know that, as a student, when I learned that fin...I know that, as a student, when I learned that finding the intersection with y=0 was the same as using the Zero function, I never used the latter ever again. Instead of scrolling left and right, you just move the cursor in the viscinity and press Enter three times. My students don't have graphing calulators, but if they did? It is so efficient that I would teach them about Intersection just so they could use it instead of Zero.Roberthttps://www.blogger.com/profile/10632549175296267400noreply@blogger.comtag:blogger.com,1999:blog-1091979517567705761.post-40849957224395638732016-01-22T18:20:03.298-06:002016-01-22T18:20:03.298-06:00I have the same issue. But I have decided I may ha...I have the same issue. But I have decided I may have a choice 2 or 3 students who I know will take notes the way I want them to be recorded. This way if I fall behind, I can snap a photo of their page and put it in my digital notebookMrs. Phttps://www.blogger.com/profile/01182798054778623961noreply@blogger.comtag:blogger.com,1999:blog-1091979517567705761.post-78322571039952232662016-01-14T08:32:46.162-06:002016-01-14T08:32:46.162-06:00Very interesting! We haven't learned to find ...Very interesting! We haven't learned to find intersections *yet* on the calculator. Sarah Carter (@mathequalslove)https://www.blogger.com/profile/11839095945000612533noreply@blogger.comtag:blogger.com,1999:blog-1091979517567705761.post-83262508848272269832016-01-14T08:32:12.145-06:002016-01-14T08:32:12.145-06:00You're welcome! Glad someone else can use it!...You're welcome! Glad someone else can use it! Sarah Carter (@mathequalslove)https://www.blogger.com/profile/11839095945000612533noreply@blogger.comtag:blogger.com,1999:blog-1091979517567705761.post-87522049157337874682016-01-14T07:03:06.733-06:002016-01-14T07:03:06.733-06:00When I taught with the TI-84, I taught finding the...When I taught with the TI-84, I taught finding the zeros with the intersection of the graph and y=0. Anonymoushttps://www.blogger.com/profile/15210301204800308798noreply@blogger.comtag:blogger.com,1999:blog-1091979517567705761.post-9931820184969652702016-01-14T05:24:23.778-06:002016-01-14T05:24:23.778-06:00Thanks for this printable. I was just teaching thi...Thanks for this printable. I was just teaching this and my students would love this in their notebooks to look back at. Dayton Stanleyhttps://www.blogger.com/profile/07930404868812194184noreply@blogger.comtag:blogger.com,1999:blog-1091979517567705761.post-46963491956207838682016-01-13T20:46:12.436-06:002016-01-13T20:46:12.436-06:00So we did this in class using quadratics (that we ...So we did this in class using quadratics (that we could graph by hand but now are testing out our technology skills). <br />I was wondering about whether to even teach using the graphing calc to find zeros. My students seem to always make mistakes with the left bound and right bound, especially if we are doing a contextual problem that involves a serious change to the window.<br />What do you think about treating finding the zeros as an intersection between the quadratic and the line y=0? Then they have to just find the intersection, which they can do much better. As long as they understand they are finding the zeros/solutions, would this work? Do any other readers think their students would be more successful this way?Stephanie Duncanhttps://www.blogger.com/profile/01219880923128364057noreply@blogger.comtag:blogger.com,1999:blog-1091979517567705761.post-65711240983376751122016-01-13T19:44:26.361-06:002016-01-13T19:44:26.361-06:00I love this idea, but I think I'm too obsessiv...I love this idea, but I think I'm too obsessive about how my notebook looks to let it in the hands of a student. Sometimes I wish I wasn't so perfectionistic. Sarah Carter (@mathequalslove)https://www.blogger.com/profile/11839095945000612533noreply@blogger.comtag:blogger.com,1999:blog-1091979517567705761.post-77950833875746309652016-01-13T19:43:43.109-06:002016-01-13T19:43:43.109-06:00Thanks for the tip! I keep learning new things. ...Thanks for the tip! I keep learning new things. :) Sarah Carter (@mathequalslove)https://www.blogger.com/profile/11839095945000612533noreply@blogger.comtag:blogger.com,1999:blog-1091979517567705761.post-53656141334075330822016-01-13T17:32:01.177-06:002016-01-13T17:32:01.177-06:00If you have a student who is a fast finisher, they...If you have a student who is a fast finisher, they can be the ones to update your notebook. Or it could be a class job. Or for a little extra credit (though I'm not sure I'd trust the kid who needs extra credit to update the master notebook). AdelineTaylorhttps://www.blogger.com/profile/15900638961970372340noreply@blogger.comtag:blogger.com,1999:blog-1091979517567705761.post-66312922349043697612016-01-13T17:12:13.165-06:002016-01-13T17:12:13.165-06:00If you have know that an x-intercept is between tw...If you have know that an x-intercept is between two integers (ex: -2 and -1), you can type the lower x-value (-2) for the left bound, press enter, type the higher x-value (-1) for the right, press enter, and then press enter again. <br /><br />The same thing will work for the bounds to find the minimum or maximumAnonymoushttps://www.blogger.com/profile/15210301204800308798noreply@blogger.com