EngageNY
Making Scale Drawings Using the Ratio Method
Is that drawn to scale? Capture the artistry of geometry using the ratio method to create dilations. Mathematicians use a center and ratio to create a scaled drawing. They then use a ruler and protractor to verify measurements.
EngageNY
Prove the Pythagorean Theorem Using Similarity
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.
EngageNY
Law of Cosines
Build upon the Pythagorean Theorem with the Law of Cosines. The 10th part of a 16-part series introduces the Law of Cosines. Class members use the the geometric representation of the Pythagorean Theorem to develop a proof of the Law of...
EngageNY
Proving the Area of a Disk
Using a similar process from the first lesson in the series of finding area approximations, a measurement resource develops the proof of the area of a circle. The problem set contains a derivation of the proof of the circumference...
K20 LEARN
Are We Golden?
Lead your class on a search for precious bones. Using a presentation, the class investigates the golden ratio in art and nature. Groups of pupils measure specific bones and find the average ratio for the class. To further cement the...
Illustrative Mathematics
Bank Shot
Young geometers become pool sharks in this analysis of the angles and lengths of a trick shot. By using angles of incidence and reflection to develop similar triangles, learners plan the exact placement of balls to make the shot....
Curated OER
Kites
Students practice estimating and comparing measurements using yards, feet, and inches. They make comparisons about kites and a variety of measurements. Afterwards, they complete an activity sheet and draw a bird kite with long wings and...
Curated OER
All About Measuring with the Metric System
Students discover the metric system through video clips and Internet activities. In this measurements lesson, students practice using the units of measure for the metric system and compare them to the less popular English system....
Curated OER
English Measurement System
Students determine how to convert measurement. In this English Measurement activity, students discover interesting facts about the history of measurement. Students study formulas and practice using them.
Curated OER
Mass: Applying and Interpreting
Students rotate through six studying stations solving problems that involve applying and interpreting aspects of mass. They solve various word problems, and measure the contents of cans and calculate the mass of two cans.
Curated OER
Pan Balance: Shapes
Students explore the concept of equivalence as it relates to comparing concrete objects to determine greater or lesser attributes such as length and weight. In this pan balance-shapes lesson, students make estimations while verifying...
Curated OER
Measurement and Estimation
Third graders create a table in order to record estimations and measurements of objects. In this estimation and measurement lesson plan, 3rd graders estimate and measure object's lengths, area, weight, and capacity.
Curated OER
Radians, Arc Length, and the Area of a Sector
In this college level geometry worksheet, students convert between degrees and radians. Students determine arc length and solve problems involving the area of a sector. The four page worksheet contains seventy-four...
Curated OER
Counting on Measurement
First graders explore measurement. They measure by counting non-standard units. Students use a variety of non-standard units to predict and measure volume of various containers using rice.
Curated OER
Mavericks and Measurement
Young scholars study the measurement formulas for area and perimeter in real-life situations. In this area and perimeter lesson, students design a bed and arrange furniture in a hotel room using area and perimeter formulas for a 7 1/2...
Curated OER
Length of an Arc and Area of a Sector
In this length of an arc and area of a sector worksheet, 10th graders solve and complete 12 different types of problems. First, they find the length of an arc in a circle with a given radius and central angle measure. Then, students find...
Curated OER
French Fry Fun: Estimating and Measuring
Third graders demonstrate their estimating and measuring abilities. In this length measurement lesson, 3rd graders produce estimates of how long a handful of French fries will be before physically measuring them. Students...
Curated OER
Indirect Measurement, Surveying Trigonometry
Students measure distances using indirect measurements. In this geometry lesson, students apply proportion and ratios to measure heights of different objects. They differentiate between direct and indirect measurements.
Curated OER
Industrial Measurement: Using Calipers to Assess Acceptable Dimensions
Young scholars accurately measure several dimensions of common objects using calipers. They determine whether a manufactured product meets correct specifications for length, width, height, depth and diameter.
Curated OER
Indirect Measurement
Learners measure and apply their knowledge of proportion to solve problems. In this geometry lesson, students measure using a meter stick, small mirror and measuring tape. They compare and contrast their measurements to objects outside...
Curated OER
Properties of Arcs, Lengths and Chords
Young scholars differentiate between the different properties of arcs, arc lengths, chords, and chord lengths. In this circles lesson, students calculate the arc length of a given circle, and find the measure of the inscribed angles of a...
Alabama Learning Exchange
Cosmic Measurements
Students develop two units of measurement to relate to the astronomical unit and the light year. In this astronomy lesson, students use a Twizzler to develop a measurement unit similar to the astronomical unit. They use a moving object,...
Curated OER
Measuring Up on the Mayflower
Second graders use a meter tape to compare the length of the Mayflower to a basketball court and make homemade butter for crackers. Afterward, all students sit inside the makeshift Mayflower's dimensions and enjoy their Pilgrim butter.
Curated OER
The Measurement Man
Students explore the measurements of capacity by constructing a creative project in the shape of a man. The man has body parts that represent different units of measurement and can be used to make conversions. This is highly concrete and...