Ohio Resource Center

# ORC Resource Types

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 Results 261 - 270 of 381: Return to Resource Types Resource Type(s): Instructional Resources — Best Practice
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261
Square Circles
ORC# 7864
Resource Information
Resource Type: Instructional Resource -- Best Practice
Discipline: Mathematics
Professional Commentary: This lesson features two creative twists on the standard lesson of having students measure several circles to discover that the ratio of the circumference to the diameter seems always to be a little more than 3.  This lesson starts with squares, so students can first identify a simpler constant ratio (4) of perimeter to length of a side, before moving to the more difficult case of the circle. The second good idea is to measure with a variety of units, so students can more readily see that the ratio of the measurements remains constant, not only across different sizes of figures, but even for the same figure with different measurements....
262
Stacking Squares
ORC# 7865
Resource Information
Resource Type: Instructional Resource -- Best Practice
Discipline: Mathematics
Professional Commentary: This lesson is a nice example of using geometric models to gain a deeper understanding of numerical relationships. Students are challenged to arrange towers of small squares that are the same height as a given large square....
263
Supreme Court Welcome
ORC# 7867
Resource Information
Resource Type: Instructional Resource -- Best Practice
Discipline: Mathematics
Professional Commentary: This two-lesson unit allows students to investigate the triangular numbers in an interesting, real-world context, the Supreme Court. Beginning with the classic handshake problem, students generate geometric and algebraic representations for the patterns they encounter and conclude with a formula for the nth triangular number....
264
The Expanding Universe
ORC# 8045
Resource Information
Resource Type: Instructional Resource -- Best Practice
Discipline: Science
Professional Commentary: This best practice lesson is designed to help students gain a deeper understanding of cosmology. Students develop a model of the expanding universe and gather evidence to support the Big Bang theory....
265
Star Light, Star Bright
ORC# 8046
Resource Information
Resource Type: Instructional Resource -- Best Practice
Discipline: Science
Professional Commentary: Star Light, Star Bright explores the nature of the electromagnetic spectrum. In this lesson, students identify the different properties of waves and the relationship that exists between energy, wavelength, and frequency....
266
Supernova Chemistry
ORC# 8049
Resource Information
Resource Type: Instructional Resource -- Best Practice
Discipline: Science
Professional Commentary: This best practice lesson engages students by having them observe visible spectra of known elements and identify an unknown element or combination of elements by visible spectra. Throughout this lesson students observe various light sources including tubes that have been filled with various types of gases....
267
Carl Sandburg’s “Chicago”: Bringing a Great City Alive
ORC# 8062
Resource Information
Resource Type: Instructional Resource -- Best Practice
Discipline: English Language Arts
Professional Commentary: In this lesson, students will look at Carl Sandburg's poem "Chicago" in a literary, historical, and biographical context. By first examining primary photographs, maps, and other documents that depict Chicago at the turn of the century, students will anticipate Sandburg's description of and attitudes towards the city....
268
Finding Impact Craters with Landsat
ORC# 8076
Resource Information
Resource Type: Instructional Resource -- Best Practice
Discipline: Science
Professional Commentary: In this best practice lesson students consider the sudden release of a tremendous amount of kinetic energy when an extraterrestrial object strikes the Earth. They write about the effects that such a collision might have on the land, atmosphere, water, and living things....
Career Fields: Agricultural & Environmental Systems, Engineering & Science Technologies, Health Science, Law & Public Safety, Transportation Systems
Projects: Standards First
269
Nature’s Pharmacy: Killing the Cure?
ORC# 8317
Resource Information
Resource Type: Instructional Resource -- Best Practice
Discipline: Science