EngageNY
Making Scale Drawings Using the Parallel Method
How many ways can you create a dilation? Many! Individuals strengthen their understanding of dilations by using various methods to create them. The new technique builds on pupils' understanding of the ratio method. Using the ratio,...
West Contra Costa Unified School District
Investigating Similar Triangles
Let your use of the resource be in proportion to its usefulness. Pupils investigate similar triangles by measuring side lengths and considering given angle measures. The results of the investigation help develop generalizations about...
EngageNY
Congruence Criteria for Triangles—SAS
Looking for a different approach to triangle congruence criteria? Employ transformations to determine congruent triangles. Learners list the transformations required to map one triangle to the next. They learn to identify congruence if...
EngageNY
Informal Proof of AA Criterion for Similarity
What does it take to show two triangles are similar? The 11th segment in a series of 16 introduces the AA Criterion for Similarity. A discussion provides an informal proof of the theorem. Exercises and problems require scholars to apply...
EngageNY
More About Similar Triangles
Determine whether two triangles are similar. The lesson presents opportunities for pupils to find the criterion needed to show that two triangles are similar. Scholars use the definition of similarity to find any missing side...
LABScI
Acoustics: The Sound Lab
If the delay between a sound and its echo is less than 1/10th of a second, the human ear can’t distinguish it. Through the use of a Slinky, rubber band guitar, and straws, scholars explore where sound comes from and how it travels. Whole...
Channel Islands Film
Island Rotation: Lesson Plan 1
How do scientists provide evidence to support the theories they put forth? What clues do they put together to create these theories? After watching West of the West's documentary Island Rotation class members engage in a series of...
Curated OER
Sample Lesson Plan on Lines and Angles
Student complete worksheet using the definitions of lines and angle vocabulary. They define the word and follow a direction given on the worksheet such "construct a line." They complete an online tutorial on how to measure angles using a...
Curated OER
Geometry: Lesson 8
Eighth graders engage in a lesson that is concerned with the finding of angles that are found in different two dimensional figures. They compare and contrast exterior and interior angles while also determining the unknown measures of...
Curated OER
Hypatia: Angles
Introduce your young geometers to Hypatia, the first noted Greek female mathematician, and the properties of angles. Though this resource is missing worksheets that are needed to complete the lesson, the structure is sound and learning...
Curated OER
History of Physics
In this history worksheet, students use the questions to discover meaningful science and history connections. The worksheet is meant to be viewed online to access individual answers.
Curated OER
Checking the Surf
Pupils read and discuss waves and their wavelengths and amplitudes. In this waves lesson plan, students draw the wavelength and amplitude of a wave and discuss tsunamis and storms.
Nature
Structural Hazards
The scientific explanation of seismic waves is detailed in the introduction. A fictional scenario is also provided for your class to discuss. Pictures and handouts that are meant to be included, however, they are not accessible....
Curated OER
Differential Thermal Calorimetry
Students access prior knowledge of infrared rays, ultraviolet rays, gamma rays, x-rays and cosmic waves. In this electromagnetic waves lesson, students hold a mock trial electromagnetic spectrum. Students present characteristics of the...
Curated OER
Parallelism in Our Everyday World: Parallel Lines and Beyond
Students broaden their outlook on geometry in their everyday environment. They explore the properties of parallel lines and parallelograms and discover ways to prove the existence of parallel lines and discuss the concept of parallel lines.
Curated OER
Riding the Radio Waves
Students examine the basic concepts of radio waves and magnetic fields. They study how the AM radios are built and demonstrate the concepts of amplitude and frequency.
Curated OER
From Bats to Babies: Ultrasound
Students research and analyze sound waves and how an ultrasound works to image a baby in utero. They explore various websites, complete worksheets, and write a paragraph describing a demonstration they view in the classroom.
Curated OER
"Bridge Designer" Lab
Students become civil engineers and assist in designing a Truss Bridge to carry a two-lane highway across a river valley using the West Point Bridge Designer 2003 Software. They construct bridges based upon budget and demos. Students...
Curated OER
Light
Fifth graders sit in their seats with the lights on and then the teacher turns off the lights. After their eyes have adjusted, they vote on what colors of construction paper are being held up. The lights are then turned back on and...
Curated OER
A Whole Lotta Shakin'
Students read first hand accounts of earthquake survivors in order to begin the describe the different types of earthquake waves and the order in which they arrive. They engage in using earthquake waves as a means to indirectly study the...
Curated OER
Popcorn Is a Gas
Students investigate why and how popcorn pops. In this gas lesson plan, students observe and make suggestions as to what causes popcorn to pop after observing popped corn and corn kernels. Students mass the kernels before and after...
Curated OER
Uniform-Motion Problems: Just Playing with Cars
Students explore the concept of the formula for distance. In this formula for distance lesson, students time battery operated cars with constant velocity over 15 meters. Students use the distance = rate x time formula to determine the...
Curated OER
Anatomy of Living Bone
Students analyze and examine the anatomy of bones and bone conditions. In this bone anatomy lesson, students analyze and examine the structural properties of bones. They explain the relationship between osteoblasts and osteoclasts and...
Curated OER
Application of Delta-Epsilon Definition of the Limit
Students create a Hexaflexagon using a formula. In this calculus lesson, students apply the definition of delta epsilon as it relates to limit to create a shape using creases. They relate the same rule to triangles and investigate angles.
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