<?xml version="1.0"?>
<rss version="2.0">
   <channel>
      <title>Interactive Resources for Studying Quadratic Functions - Grade 9 by Maia Porombrica</title>
      <link>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax</link>
      <description>Discover experiments, applets, videos, and engaging tools to explore quadratic functions (degree 2 polynomials) over the real numbers (R). Perfect for Grade 9 math students!</description>
      <language>en-us</language>
      <pubDate>2025-10-21 19:31:16 UTC</pubDate>
      <lastBuildDate>2025-10-21 19:31:24 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
      <image>
         <url></url>
      </image>
      <item>
         <title>GeoGebra Quadratic Function Grapher</title>
         <author>matematica_salcuta</author>
         <link>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785639</link>
         <description><![CDATA[This interactive applet from GeoGebra allows you to input quadratic equations in the form y = ax² + bx + c and visualize the parabola in real-time. Adjust parameters to see how changes affect the vertex, axis of symmetry, and intercepts. Great for understanding transformations over the real set R.]]></description>
         <enclosure url="https://www.geogebra.org/m/Xrfn8z6n" />
         <pubDate>2025-10-21 19:31:18 UTC</pubDate>
         <guid>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785639</guid>
      </item>
      <item>
         <title>Desmos Graphing Calculator - Quadratics</title>
         <author>matematica_salcuta</author>
         <link>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785653</link>
         <description><![CDATA[Desmos offers a free online graphing tool where you can plot quadratic functions, explore their graphs, and interact with sliders to vary coefficients. Experiment with domain and range in R, and create your own quadratic models for real-world scenarios like projectile motion.]]></description>
         <enclosure url="https://www.desmos.com/calculator" />
         <pubDate>2025-10-21 19:31:18 UTC</pubDate>
         <guid>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785653</guid>
      </item>
      <item>
         <title>PhET Simulation: Graphing Quadratics</title>
         <author>matematica_salcuta</author>
         <link>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785662</link>
         <description><![CDATA[From the University of Colorado, this simulation lets you build and graph quadratic functions interactively. Drag points to see the parabola form and explore roots and vertices. Ideal for hands-on learning of quadratic behavior in the real numbers.]]></description>
         <enclosure url="https://phet.colorado.edu/en/simulations/graphing-quadratics" />
         <pubDate>2025-10-21 19:31:19 UTC</pubDate>
         <guid>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785662</guid>
      </item>
      <item>
         <title>MathsIsFun Quadratic Graph Explorer</title>
         <author>matematica_salcuta</author>
         <link>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785672</link>
         <description><![CDATA[An simple yet effective applet to draw and manipulate quadratic graphs. Change a, b, c values and observe the parabola's shape, direction, and position. Helps in studying the standard form and its graphical representation over R.]]></description>
         <enclosure url="https://www.mathsisfun.com/quadratic-equations-graph.html" />
         <pubDate>2025-10-21 19:31:19 UTC</pubDate>
         <guid>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785672</guid>
      </item>
      <item>
         <title>Khan Academy: Intro to Quadratic Functions</title>
         <author>matematica_salcuta</author>
         <link>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785683</link>
         <description><![CDATA[A beginner-friendly video series explaining quadratic functions, their graphs, and key features like the vertex form. Includes practice problems to reinforce concepts over the real numbers. Duration: 10-15 minutes per video.]]></description>
         <enclosure url="https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:quadratic-functions-equations" />
         <pubDate>2025-10-21 19:31:19 UTC</pubDate>
         <guid>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785683</guid>
      </item>
      <item>
         <title>3Blue1Brown: Essence of Quadratics</title>
         <author>matematica_salcuta</author>
         <link>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785687</link>
         <description><![CDATA[Visually stunning animation exploring the geometry behind quadratic equations. See how parabolas arise from real-world contexts and manipulate them interactively. Perfect for deeper intuition on degree 2 functions in R.]]></description>
         <enclosure url="https://www.youtube.com/watch?v=bI92WHPiTLE" />
         <pubDate>2025-10-21 19:31:20 UTC</pubDate>
         <guid>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785687</guid>
      </item>
      <item>
         <title>PatrickJMT: Solving Quadratics Graphically</title>
         <author>matematica_salcuta</author>
         <link>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785693</link>
         <description><![CDATA[Step-by-step video on graphing quadratic functions and finding roots using the graph. Includes examples with real coefficients and discussions on the discriminant for solutions in R.]]></description>
         <enclosure url="https://www.youtube.com/watch?v=8j9D5r4zN8k" />
         <pubDate>2025-10-21 19:31:20 UTC</pubDate>
         <guid>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785693</guid>
      </item>
      <item>
         <title>Math Antics: Quadratics Introduction</title>
         <author>matematica_salcuta</author>
         <link>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785701</link>
         <description><![CDATA[Fun and engaging animated video breaking down quadratic functions for Grade 9 level. Covers the U-shaped graph, standard form, and basic experiments with plotting points over the real line.]]></description>
         <enclosure url="https://www.youtube.com/watch?v=1xP3XPh8XWQ" />
         <pubDate>2025-10-21 19:31:20 UTC</pubDate>
         <guid>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785701</guid>
      </item>
      <item>
         <title>Projectile Motion Experiment with Quadratics</title>
         <author>matematica_salcuta</author>
         <link>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785705</link>
         <description><![CDATA[A simple at-home experiment: Drop or throw objects and measure trajectories to fit quadratic models. Use graph paper or a phone app to plot data points and derive the equation y = -16t² + vt + h, exploring physics in R.]]></description>
         <enclosure url="https://upload.wikimedia.org/wikipedia/commons/0/00/Ferde_hajitas3.svg" />
         <pubDate>2025-10-21 19:31:21 UTC</pubDate>
         <guid>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785705</guid>
      </item>
      <item>
         <title>Bridge Design Optimization Activity</title>
         <author>matematica_salcuta</author>
         <link>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785720</link>
         <description><![CDATA[Design a model bridge using quadratic functions to minimize material while maximizing strength. Calculate the parabolic arch using y = ax² + c and test with everyday materials. Relates to real-world applications of degree 2 functions.]]></description>
         <enclosure url="https://www.teachengineering.org/activities/view/cub_bridges_less_act" />
         <pubDate>2025-10-21 19:31:21 UTC</pubDate>
         <guid>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785720</guid>
      </item>
      <item>
         <title>Quadratic Patterns in Nature Walk</title>
         <author>matematica_salcuta</author>
         <link>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785723</link>
         <description><![CDATA[Outdoor activity: Observe parabolic shapes in rainbows, fountains, or bouncing balls. Sketch and approximate quadratic equations based on measurements. Encourages connecting abstract math to real phenomena in the set R.]]></description>
         <enclosure url="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b7/LandscapeArchPano.jpg/1280px-LandscapeArchPano.jpg" />
         <pubDate>2025-10-21 19:31:22 UTC</pubDate>
         <guid>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785723</guid>
      </item>
      <item>
         <title>Excel Quadratic Modeling Lab</title>
         <author>matematica_salcuta</author>
         <link>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785741</link>
         <description><![CDATA[Use Microsoft Excel or Google Sheets to input quadratic data (e.g., area vs. side length) and generate graphs. Experiment with formulas to find maximum values, simulating real data analysis for functions over R.]]></description>
         <enclosure url="https://www.mathsgenie.co.uk/resources/9-quadraticmodelling.xlsx" />
         <pubDate>2025-10-21 19:31:22 UTC</pubDate>
         <guid>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785741</guid>
      </item>
      <item>
         <title>Kuta Software Quadratic Worksheets</title>
         <author>matematica_salcuta</author>
         <link>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785749</link>
         <description><![CDATA[Printable interactive worksheets with quadratic function problems, including graphing and solving. Includes answer keys for self-checking, focused on real number solutions.]]></description>
         <enclosure url="https://cdn.kutasoftware.com/Worksheets/Alg1/Quadratic%20Formula.pdf" />
         <pubDate>2025-10-21 19:31:23 UTC</pubDate>
         <guid>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785749</guid>
      </item>
      <item>
         <title>Cuemath Quadratic Functions Guide</title>
         <author>matematica_salcuta</author>
         <link>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785762</link>
         <description><![CDATA[Comprehensive online guide with examples, formulas, and interactive quizzes on quadratic functions. Covers standard, vertex, and factored forms over the reals, with attractive visuals.]]></description>
         <enclosure url="https://www.cuemath.com/calculus/quadratic-functions/" />
         <pubDate>2025-10-21 19:31:24 UTC</pubDate>
         <guid>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785762</guid>
      </item>
      <item>
         <title>Inside Mathematics: Quadratic Video Lesson</title>
         <author>matematica_salcuta</author>
         <link>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785767</link>
         <description><![CDATA[A classroom-style video lesson for 9th-11th graders on quadratic functions, emphasizing problem-solving strategies and interactive discussions.]]></description>
         <enclosure url="https://www.insidemathematics.org/classroom-videos/public-lessons/9th-11th-grade-math-quadratic-functions" />
         <pubDate>2025-10-21 19:31:24 UTC</pubDate>
         <guid>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785767</guid>
      </item>
      <item>
         <title>Think Academy: Solving Quadratics Methods</title>
         <author>matematica_salcuta</author>
         <link>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785793</link>
         <description><![CDATA[Article with embedded interactives on various ways to solve quadratic equations, including graphing and the formula. Updated with recent examples for Grade 9.]]></description>
         <enclosure url="https://www.thethinkacademy.com/blog/how-to-solve-quadratic-equations-forms-and-methods/" />
         <pubDate>2025-10-21 19:31:26 UTC</pubDate>
         <guid>https://padlet.com/matematica_salcuta/fkuo00vq26crvnax/wish/3643785793</guid>
      </item>
   </channel>
</rss>
