EngageNY
Solving Basic One-Variable Quadratic Equations
Help pupils to determine whether using square roots is the method of choice when solving quadratic equations by presenting a lesson that begins with a dropped object example and asks for a solution. This introduction to solving by square...
Noyce Foundation
Parallelogram
Parallelograms are pairs of triangles all the way around. Pupils measure to determine the area and perimeter of a parallelogram. They then find the area of the tirangles formed by drawing a diagonal of the parallelogram and compare their...
EngageNY
Truncated Cones
Learners examine objects and find their volumes using geometric formulas in the 21st installment of this 25-part module. Objects take the shape of truncated cones and pyramids, and individuals apply concepts of similar triangles to find...
Virginia Department of Education
Surface Area and Volume
Partners use materials to wrap three-dimensional objects to determine the formula for surface area. The groups use an orange to calculate the amount of peel it takes to completely cover the fruit. Using manipulatives, individuals then...
It's About Time
Speed and Following Distance
How much distance should you keep between your car and the one in front of you? Did you think of an answer in terms of time when the question clearly stated distance? The lesson covers the relationship between distance, time, and speed....
Inside Mathematics
Rugs
The class braids irrational numbers, Pythagoras, and perimeter together. The mini-assessment requires scholars to use irrational numbers and the Pythagorean Theorem to find perimeters of rugs. The rugs are rectangular, triangular,...
EngageNY
Unknown Length and Area Problems
What is an annulus? Pupils first learn about how to create an annulus, then consider how to find the area of such shapes. They then complete a problem set on arc length and areas of sectors.
Curated OER
Easy Worksheet: Maximizing Volume
In this maximizing volume activity, students solve 4 short answer problems. Students find the maximum area of a rectangle, volume of a box, and height of an object. Students determine the time at which the object in motion reaches its...
Curated OER
Indirect Measurement with Similar Triangles
Students use similar triangles to find missing heights. In this using similar triangles to find missing heights instructional activity, students use proportions to find the heights of missing side lengths. Students find the height of...
Curated OER
Length Addition and Subtraction Word Problems
Who has the tallest ice cream cone? Learners read two short word problems to compare the heights of various objects. Because these are paired with images, the objective is more of an image analysis than measurement addition and...
Radford University
Ramp It Up
Pupils gather measurements of real-world objects that have slopes. They then plot the measurements and find an equation of a line that fits the measurements. Finally, groups investigate the ADA and determine whether different ramps meet...
Curated OER
The Shadow Knows: Student Worksheet
In this math worksheet, learners will work in small groups to measure the height of objects, such as trees, using their shadows. Students will be able to determine heights of objects that cannot be directly measured.
Curated OER
Super-Ball Physics
Students experiment with varied balls to determine the bounce factor in centimeters. In this physics instructional activity, students experiment to find the height a ball must be dropped from the have the highest bounce rate. Students...
Physics LAB
This Lens Equation #2: Converging Lenses
In this converging lens instructional activity, students answer 22 questions about converging lenses with different focal lengths. They find the distance from the lens the image will be formed, they determine if the image is virtual or...
Curated OER
Measuring Natural Objects
Students predict the measurement of objects. In this measurement instructional activity, students estimate the measurements of objects in a lab. Students measure irregular objects and generate scientific observations.
Curated OER
Math: Perimeter, Area, and Volume
Eighth graders discover how to compute the perimeter, area, and volume of different objects. With partners, they find and calculate the perimeter , area, and volume of 10 items each and exchange information. Students compile their...
Curated OER
ndirect Measurement Technique: Using Trigonometric Ratios
Ninth graders find the height of an object that would be difficult or impossible to measure directly. They construct and use a Clinometer to measure the angle of elevation (or depression). Students create a sketch of the measurement...
Curated OER
A Close Encounter of the Tree Kind
Learners study trees in their natural habitat. In this tree activity, students complete a number of outdoor activities to estimate the height of a tree, examine how bark can be a distinguishing tree characteristic, and how to make a bark...
Curated OER
Similar Triangles
Ninth graders find the height of every day objects using techniques learned through postulates that allow triangles in a problem to be similar. They calculate the length of a missing side and solve proportions.
Curated OER
Measure the Length of an Object
Every measuring job requires a tool, but which is the right one? Scholars read four measuring tasks and select the proper tool for each. Next, they switch the exercise by choosing from a list of measuring tasks given a tool. Note there...
Berkeley Engineering and Mentors
Egg Drop
How do different shapes affect the outcome associated with hard impact? All you need is an egg and some recycled materials to find out. Kids experiment to understand how airbags work to lessen the impact of two different types of...
Curated OER
Mystery Jars
Youngsters discover ways to estimate. They will use two jars with large and small items and estimate the number of items. Then record their estimate and explain why they answered the way they did. They try this experiment with different...
Florida Center for Instructional Technology
The Shadow Knows: Student Worksheet
How can you measure the height of a tree or telephone pole with only a short measuring tape? It's not a problem when you start by measuring your shadow and your height to create a ratio to use with taller objects. Additional activities...
Curated OER
The Shadow Knows: Student Worksheet
Pairs of pupils get together in order to measure the heights and lengths of their shadows. They use these measurements in order to predict the height of other friends in class. A good activity to practice measuring things that cannot be...