Desmos Interactive Graphing Calculator https://www.desmos.com/

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Presentation transcript:

Desmos Interactive Graphing Calculator

What is Desmos? Online interactive graphing tool Online interactive graphing tool Plots any type of equation Plots any type of equation Linear Linear Quadratic Quadratic Exponential, etc… Exponential, etc… Works on any computer or tablet without downloading Works on any computer or tablet without downloading Free! Free!

How does Desmos work? Click to watch a quick video on the basics of Desmos.

Desmos in the classroom: Uses in the classroom are endless Uses in the classroom are endless Desmos has premade activities made for the classroom by teachers that are aligned to Common Core Standards for many levels Desmos has premade activities made for the classroom by teachers that are aligned to Common Core Standards for many levels Students can manipulate the coordinates and notice the effects of the equation Students can manipulate the coordinates and notice the effects of the equation Students can complete activities in the classroom or finish at home if they don’t have enough time Students can complete activities in the classroom or finish at home if they don’t have enough time

Implementation #1 Exploring Transformations of Exponential Functions Transformation of Exponential Functions.docx Transformation of Exponential Functions.docx Transformation of Exponential Functions.docx Transformation of Exponential Functions.docx Students used Desmos to explore various transformations on the parent function y=2 x Students used Desmos to explore various transformations on the parent function y=2 x This lesson is very similar to a lesson I did in previous years, but it was very time consuming to have students make tables of the values and graph the different transformations. It also took out the human error element when students miscalculate values. This lesson is very similar to a lesson I did in previous years, but it was very time consuming to have students make tables of the values and graph the different transformations. It also took out the human error element when students miscalculate values.

Implementation #1 Exploring Transformations of Exponential Functions Successes: Students were able to work at own pace Students were able to work at own pace Students who “got it” could work ahead and not have to wait for lecture to move on Students who “got it” could work ahead and not have to wait for lecture to move on Lesson took less time than doing it by hand Lesson took less time than doing it by handChallenges Students who need assistance can’t be helped all at once because they are in different spots in lesson Students who need assistance can’t be helped all at once because they are in different spots in lesson Some students just worked through the lesson without really thinking about what was happening (they were just looking for right answer not WHY) Some students just worked through the lesson without really thinking about what was happening (they were just looking for right answer not WHY)

Implementation #2 Point-Slope Form pointslopeform.pdf pointslopeform.pdf pointslopeform.pdf Students develop meaning of point-slope form by manipulating the different coordinates Students develop meaning of point-slope form by manipulating the different coordinates Students notice that equations can be written in different forms, but will represent the same line. Students notice that equations can be written in different forms, but will represent the same line.

Implementation #2 Point-Slope Form Successes: Students can see different lines quickly instead of graphing by hand Students can see different lines quickly instead of graphing by hand Students created their own equations and were able to check their lines (since the graphing calculator only does slope-intercept form students were never able to check their graphed equations before) Students created their own equations and were able to check their lines (since the graphing calculator only does slope-intercept form students were never able to check their graphed equations before)Challenges I wish the equation for the line showed on the equation bar so that students could SEE the coordinates and slope change or not change when the points were manipulated. I wish the equation for the line showed on the equation bar so that students could SEE the coordinates and slope change or not change when the points were manipulated.