Unit Plan
Khan Academy

Khan Academy: Praxis Core Math: Algebraic Properties Lesson

For Students 9th - 10th
Goes over the properties that apply to algebraic expressions and equations. Includes examples and practice questions.
Unit Plan
PBS

Pbs: Math With Jake: Transposition Using Ratios

For Students 6th - 8th
Composer and ukulele artist Jake Shimabukuro describes the concept of transposing notes in music and how ratios are applied in this video from Center for Asian American Media. Shimabukuro explains how to transpose music written in the...
Lesson Plan
Texas Instruments

Texas Instruments: Simple Programs to Apply Formulas

For Teachers 9th - 10th Standards
Students learn how to write simple programs to evaluate formulas in several variables for lists of data. They apply these skills to the computation of areas, volumes and surface areas of familiar geometric solids.
Lesson Plan
PBS

Pbs Learning Media: Ratio/proportion: Targeted Math Instruction

For Teachers 9th - 10th Standards
At the end of this lesson about ratio/proportion, learners will be able to recognize and apply ratios and proportions to solve real-life problems and solve for any unknown component.
Website
Oswego City School District

Regents Exam Prep Center: Rational (Fractional) Expressions

For Students 9th - 10th Standards
A wealth of resources to help you in planning classroom instruction on rational expressions: lesson plans offer guidelines for and examples of simplifying, adding and subtracting, multiplying and dividing rational expressions; practice...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: F Tf, G Co, Trigonometric Identities and Rigid Motions

For Teachers 9th - 10th Standards
The purpose of this task is to apply translations and reflections to the graphs of the functions f(x)=cos x and g(x)=sin x in order to derive some trigonometric identities. There are also rotations 180 degrees about points on the x-axis...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Co Building a Tile Pattern by Reflecting Octagons

For Teachers 9th - 10th Standards
This task applies reflections to a regular octagon to construct a pattern of four octagons enclosing a quadrilateral. The focus of the task is on using the properties of reflections to deduce that the quadrilateral is actually a square....
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Co Parallelograms and Translations

For Teachers 9th - 10th Standards
In this task, students apply the definition of a parallelogram in the context of a geometric construction. Aligns with G-CO.C.11.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: F Tf Trigonometric Ratios and the Pythagorean Theorem

For Teachers 9th - 10th Standards
The purpose of this task is to use the Pythagorean Theorem to establish a fundamental trigonometric identity for an acute angle. The reasoning behind this identity is then applied to calculate a cosine for a given obtuse angle. Aligns...
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Graphs of Polynomials Using Transformations

For Students 11th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson, students apply transformations to uncommon polynomial functions. Students examine guided notes, review guided practice, watch instructional videos...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Chords in Circles

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson, students apply chord theorems. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Tangent Lines

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This concept teaches students about tangent lines and how to apply theorems related to tangents of circles.
PPT
Sophia Learning

Sophia: Triangle Proportionality Theorem: Lesson 4

For Students 9th - 10th Standards
This lesson presents how to apply the triangle proportionality theorem to solve for unknown variables and side lengths. It is 4 of 6 in the series titled "Triangle Proportionality Theorem."
Unit Plan
PBS

Pbs: Equivalent Expressions Using Exponents

For Students 6th - 8th
Apply your critical thinking skills to learn about multiplication and division of exponents. This interactive exercise focuses on positive and negative exponents and combining exponents in an effort to get you to recognize patterns and...
Unit Plan
Khan Academy

Khan Academy: Challenge Problems: Inscribed Shapes

For Students 9th - 10th Standards
Solve three challenging problems that apply properties of inscribed shapes to find an arc length or a missing angle.
Unit Plan
Khan Academy

Khan Academy: Challenge Problems: Inscribed Angles

For Students 9th - 10th Standards
Solve two challenging problems that apply the inscribed angle theorem to find an arc measure or an arc length.
Unknown Type
Khan Academy

Khan Academy: General Triangle Word Problems

For Students 9th - 10th Standards
Solve word problems that involve general triangles using trigonometry. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Handout
Purple Math

Purplemath: Basic Trigonometric Ratios: Examples

For Students 9th - 10th Standards
Demonstrates how to use trig ratios to do simple solving of triangles.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G C, G Srt Setting Up Sprinklers

For Teachers 9th - 10th Standards
In this task, students must decide where to place sprinklers on a lawn so that the maximum area of the lawn will be watered. To solve it, they must find areas of sectors of circles and use trigonometric ratios to solve right triangles....
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Srt Shortest Line Segment From a Point P to a Line L

For Teachers 9th - 10th Standards
In this task, students develop an understanding that the shortest path from a point to a line always meets the line at a right angle. Aligns with G-SRT.C.8.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Mg Satellite

For Teachers 9th - 10th Standards
This task models a satellite orbiting the Earth in communication with two control stations located miles apart on Earth's surface. Students determine distances between various locations and, given a rate of travel, they determine the...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Mg a Ton of Snow

For Teachers 9th - 10th Standards
In this task, students are asked to find out how much snow has been shoveled using the concepts of area, depth, density, and rate. Aligns with HSG-MG.A.2.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Mg Indiana Jones and the Golden Statue

For Teachers 9th - 10th Standards
The goal of this task is to provide an introduction to the sometimes subtle use of density and units related to density, in a simple and fun context with minimal geometric complexity. Includes video showing the opening scene of Raiders...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Mg How Thick Is a Soda Can? Variation Ii

For Teachers 9th - 10th Standards
In this task, students are given an aluminum soda can and are simply asked how they could determine how thick the can is. Aligns with G-MG.A.1 and G-MG.A.2.

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