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.
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...
Website
Science Buddies

Science Buddies: Science Careers: Mathematician

For Students 9th - 10th
Mathematicians work in many areas. Some are applied mathematicians, some theoretical, but all use mathematics as a way to figure things out by using deduction. This Science Buddies site lays out the requirements needed to become a...
Unit Plan
Stefan Warner and Steven R. Costenoble

Finite Mathematics & Applied Calculus: Matrix Addition and Scalar Multiplication

For Students 9th - 10th Standards
Students learn about matrix addition and subtraction, and scalar multiplication. The tutorial consists of class notes, examples, and practice problems. Review exercises and a chapter quiz are included.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Mg How Many Cells Are in the Human Body?

For Teachers 9th - 10th Standards
About how many cells are in the human body? The purpose of this task is for students to apply the concepts of mass, volume, and density in a real-world context. Aligns with G-MG.A.2.
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, young scholars 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: G Gpe Equal Area Triangles on the Same Base Ii

For Teachers 9th - 10th Standards
This task has students apply their knowledge of parallel lines to solve a geometric problem on areas of triangles. The task is open-ended in that students can choose their method of completing the task. Aligns with G-GPE.B.5.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Gpe Scaling a Triangle in the Coordinate Plane

For Teachers 9th - 10th Standards
The goal of this task is to apply dilations to a triangle in the coordinate plane. Young scholars will need to find the coordinates of a point which cuts a given segment into one third and into two thirds. The two dilated triangles share...
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: 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.
Activity
Science Buddies

Science Buddies: Career Profile: Computer Software Engineer

For Students 6th - 9th
For those students interested in developing cool video game software for computer or those who enjoy applying their compter science skills to solve problems, a career as a computer software engineer might be worth examining. This Science...
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."
Handout
Other

Wpi: Exponential Growth and Decay

For Students 9th - 10th Standards
This site explains exponential growth and decay and how it applies to the real world with its use in bacterial populations.
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
Oswego City School District

Regents Exam Prep Center: Counting Principle

For Students 9th - 10th
The counting principle is even easier to understand after reading this tutorial. There are practice problems and a teacher resource page included.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Mg Ice Cream Cone

For Teachers 9th - 10th Standards
You have been hired by the owner of a local ice cream parlor to assist in his company's new venture. The company will soon sell its ice cream cones in the freezer section of local grocery stores. The manufacturing process requires that...
Lesson Plan
Alabama Learning Exchange

Alex: Land Surveying Project

For Teachers 9th - 10th
This project resulted from of the collaboration of a computer aided drafting teacher, Chris Bond, and a math teacher, Lee Cable, (Hewitt-Trussville High School) to provide higher math expectations in CT and real life application in...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G C, G Srt Neglecting the Curvature of the Earth

For Teachers 9th - 10th Standards
Jerry and Ashley are trying to find out if it is possible to see the lowest point in the USA from the highest point in the USA. It turns out that the highest point in the United States, the peak of Mount Whitney, is only 85 miles from...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Srt, G Mg Coins in a Circular Pattern

For Teachers 9th - 10th Standards
For this task, students investigate how many coins will fit around a central coin when they are all of the same denomination, and if there is room left over. The teacher is given a chart of four coin denominations and their diameters,...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Srt, G Mg Seven Circles Iii

For Teachers 9th - 10th Standards
In this task, young scholars are shown circle formations where an inner circle is surrounded by a set of circles and all circles are touching. In the first situation, all circles have the same diameter. In the second, the inner circle is...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Mg Archimedes and the King's Crown

For Teachers 9th - 10th Standards
The King of Syracuse reportedly requested Archimedes' advice for determining if a crown was made with the appropriate mixture of gold and silver. The problem asks learners to find the amount of water displaced in Archimedes' experiment...
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 How Many Leaves on a Tree? (Version 2)

For Teachers 9th - 10th Standards
In this task, students must estimate the number of leaves on a large tree, taking into account various complex factors such as the area shaded by the tree, the area of irregularly shaped leaves, the uneven distribution of leaves, the...

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