NSDL teaching resources related to “grid”

In this lesson about speciation and its role in evolution, different subspecies of a California salamander are placed on a grid map of California according to where samples were collected. Discussion focuses on patterns of their distribution, their likely evolutionary relationships, and probable sequence of formation from the original form (speciation).

A Step in Speciation: The Analysis of Field Observations

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In this activity students examine the effect of various levels of ground shade on new seedlings. They will build a model of a variable canopy out of a plastic grid. This activity offers students an opportunity to germinate seeds and maintain seedlings within a structured and controlled environment, an opportunity to observe how a canopy affects seedling growth, and an inquiry experience in which students compare and contrast the effects of canopy coverage on seedling growth.

Growing Prairie

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In this activity, students will develop and be able to manipulate a grid coordinate system on a 7.5 minute series local topographic map. Students will learn to use the grid coordinate protractor (GCP) to plot azimuth values as a means of indicating direction on these maps; they will also learn to perform simple map traverses.

Topographic Maps II

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Shaw and McKay believed that the social disorganization concept could be applied to the passage of nationality groups through a spatial grid of the city. Discovering a strong association between crime rates and census tracts, Shaw and McKay explored the delinquency problem in inner-city areas in Chicago.

Clifford R. Shaw and Henry D. McKay: The Social Disorganization Theory

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