Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A Apr Zeroes and Factorization of Quadratic Polynomial

For Teachers 9th - 10th Standards
This is the first of a series of problems building to an understanding of an important property of polynomial functions, that a polynomial of degree d can have at most d roots. Aligns with A-APR.B.2.
Handout
Purple Math

Purplemath: Completing the Square: Solving Quadratic Equations

For Students 9th - 10th Standards
Purplemath gives several examples which clearly show the process of completing the square to find the maximum and minimum solutions to a quadratic equation.
Activity
Texas Instruments

Texas Instruments: Explore Graphs and Factors

For Students 9th - 10th Standards
Students use a graphing calculator to explore the relationship between the linear factors of a quadratic function and its zeros. They learn that the x-intercepts and axis of symmetry of a quadratic function can be determined from its...
Unit Plan
PBS

Pbs: String Product: Y = X^2

For Students 6th - 8th
Examine how a giant sculpture at the National Museum of Mathematics represents the solutions to the equation y=x^2. This video focuses on the basics of graphing quadratic functions and the relationship between x and y values along the...
Unit Plan
Khan Academy

Khan Academy: Equations & Inequalities Word Problems

For Students 9th - 10th Standards
HSA-CED.A.1: Interactive resource which create equations and inequalities in one variable and use them to solve problems. Include equations arising from linear and quadratic functions, and simple rational and exponential functions....
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A Rei Two Squares Are Equal

For Teachers 9th - 10th Standards
This task asks students to solve a quadratic equation in as many different ways as they can. Aligns with A-REI.B.4 and A-REI.D.11.
eBook
Math Planet

Math Planet: Algebra 2: Standard Deviation and Normal Distribution

For Students 9th - 10th Standards
Gain an understanding of standard deviation and normal distribution by viewing an example and a video lesson.
Activity
Other

Math Mistakes: Common Algebra Mistakes

For Students 9th - 10th
Learn from other student's mistakes by reviewing examples of the following Algebra topics: rational expressions, radical expressions, function notation, solving linear equations, solving linear inequalities, solving quadratic equations,...
Lesson Plan
Khan Academy

Khan: Lsn 8: Interpreting Relationships in Scatterplots/graphs/tables/equations

For Students 9th - 10th Standards
This lesson focuses on Interpreting and analyzing linear, quadratic, and exponential models and graphs. Young scholars will use best fit lines to interpret contexts, distinguish whether contexts are linear or exponential functions, use...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: F Le Choosing an Appropriate Growth Model

For Teachers 9th - 10th Standards
The goal of this task is to examine some population data for large cities from a modeling perspective. Young scholars are asked to decide if the population data can be accurately modeled by a linear, quadratic, and/or exponential...