Lesson Plan
Curated OER

Measurement of Objects Using Similar Triangles in The Plane

For Teachers 9th - 11th
Students use similar triangles and a sight tool to find the height and distance between large objects. In this similar triangles lesson plan, students use a constructed sight tool to measure the distance and height of an object using an...
Lesson Plan
Curated OER

Similarity

For Teachers 8th
Eighth graders understand that proportional enlargement of shapes doesn't change the angles of those shapes. For this similarity lesson, 8th graders complete exercises to create enlargements of shapes and understand similar shapes.
Lesson Plan
Curated OER

Solving Percent Problems with Proportions

For Teachers 7th
Seventh graders explore the concept of percent problems. In this percent problem lesson plan, 7th graders use proportion equations to solve percent problems. Students find percentages of numbers and use proportions to determine...
Worksheet
Curated OER

Ratio and Unitary Methods

For Students 6th - 8th
For this ratios worksheet, middle schoolers solve 4 short answer problems. Students determine the number of girls/boys and oranges/water given a ratio.
Lesson Plan
Curated OER

7.RP Music Companies, Variation 1

For Teachers 6th - 8th Standards
We've got the beat! And your musically-minded mathematicians will tap their toes as they determine which music company would be getting a better deal based on their offers to buy out TunesTown. The topic is extended in an additional...
Handout
University of California

Student Workbook: Algebra and Functions

For Students 6th - 10th Standards
A smorgasbord of functions, this packet has the basics required for your learners to be successful in the land of early algebra. The packet includes solving equations, graphing, evaluating, simplifying and basically everything else...
Lesson Plan
Curated OER

Investigation: The Local Bagel Shop

For Teachers 6th
Sixth graders explore economics by solving business math problems. In this ratio and proportion lesson, 6th graders examine different meals to be purchased at a coffee shop and compare which prices make which meals a better purchase....
Lesson Plan
Curated OER

How Far Can You Go On a Tank Of Gas?

For Teachers 8th - 10th
Students calculate the distance they can travel on a tank of gas. In this algebra lesson, students use ratio and proportion to solve word problems. They graph their results and discuss their findings with the class.
Lesson Plan
Curated OER

Health/Wellness Interdisciplinary Unit

For Teachers 6th - 7th
Students examine human body systems, research a disease or condition, analyze their family trees to look for health conditions and/or diseases which may be prevalent, discover ratio and proportions of human body, and read novel, The...
Lesson Plan
Curated OER

Scaling Down Art

For Teachers 7th - 8th
Students change the scale of a work of art using ratios, percentages, and proportions. While this is technically an art lesson, there is quite a bit of mathematics involved in converting to the correct scale.
Lesson Plan
Curated OER

Math: Currency Exchange Rates

For Teachers 6th
Sixth graders apply the division and multiplication of decimals to convert dollars to various international currencies. In a travel simulation activity, they convert money, distance, and temperatures. During their "trip," students...
Lesson Plan
Curated OER

Connections

For Teachers 5th
Fifth graders create a musical composition, a drawing, or a 3D structure to show how math connects to other subjects. In this math and other subjects lesson plan, 5th graders present their presentations to the class and explain the...
Assessment
1
1
California Education Partners

Miguel's Milkshakes

For Students 7th Standards
Moooove over, there's a better deal over there! The fourth segment in a series of eight requires individuals to determine the best unit cost for milk. Scholars calculate the least amount they can spend on a particular quantity of...
Lesson Plan
Illustrative Mathematics

Gotham City Taxis

For Teachers 6th - 8th Standards
Taxi! Have your travelers figure out how far they can go in a taxi for $10.00. They must account for the mileage rate and tip in their calculation. They can set up a table or make an equation to solve for the exact mileage they can...
Lesson Plan
Bowland

Design the Mascot

For Teachers 6th - 9th
Explore how resizing an object affects its area. The set of lessons challenges young mathematicians to design a mascot for electronic devices. These designs undergo resizing to determine how scale factors of dilation affect area.
Assessment
1
1
California Education Partners

Animals of Rhomaar

For Students 7th Standards
Investigate the growth rates of alien animals. Pupils study fictional animals from another planet to determine how much they grow per year. The investigators plot the growth of their animals over a period of time and then compare...
Lesson Plan
EngageNY

Prove the Pythagorean Theorem Using Similarity

For Students 9th - 10th Standards
Amaze your classes with the ability to find side lengths of triangles immediately — they'll all want to know your trick! Learners use the Pythagorean Theorem and special right triangle relationships to find missing side lengths.
Lesson Plan
Curated OER

Similarity and Dilations - Discover Properties of Similar Figures

For Teachers 9th - 12th Standards
Learners investigate properties of similar figures. For this properties of similar figures lesson, pupils construct similar figures using Cabri Jr. They dilate their figure to create a similar one, and discuss the relationships between...
Unit Plan
Bowland

Alien Invasion

For Teachers 6th - 9th
Win the war of the worlds! Scholars solve a variety of problems related to an alien invasion. They determine where spaceships have landed on a coordinate map, devise a plan to avoid the aliens, observe the aliens, and break a code to...
Lesson Plan
Willow Tree

Circle Graphs

For Students 9th - 12th Standards
Pie isn't just for eating! Scholars learn to create pie charts and circle graphs to represent data. Given raw data, learners determine the percent of the whole for each category and then figure out the degree of the circle that percent...
Worksheet
Curated OER

Similarity: Instructional

For Students 7th - 8th
In this similarity instructional activity, students solve and complete 7 different problems that include determining various dimensions of mirrors shown. First, they find the length of the diagonal of the large mirror in the diagram....
Worksheet
Balanced Assessment

Who's Left?

For Students 6th - 8th
If you're not right-handed, are you wrong-handed? Young statisticians calculate the percentage of left-handed people using a given data set in the assessment task. They plot data on a scatter plot and consider how the line of best fit...
Lesson Plan
EngageNY

The Side-Angle-Side (SAS) and Side-Side-Side (SSS) Criteria for Two Triangles to Be Similar

For Students 9th - 10th Standards
Playing with mathematics can invoke curiosity and excitement. As pupils construct triangles with given criteria, they determine the necessary requirements to support similarity. After determining the criteria, they practice...
Activity
Teach Engineering

Scale Model Project

For Students 8th - 10th Standards
Try your hand at scale models. Scholars create a scale model of an object using a scale factor of their choice. As part of the project, they give presentations on their processes and calculations. This is the last installment of the...

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