(Nota: Esta es una traducción de un recurso educativo abierto creado por el Departamento de Educación del Estado de Nueva York (NYSED) como parte del proyecto "EngageNY" en 2013. Aunque el recurso real fue traducido por personas, la siguiente descripción se tradujo del inglés original usando Google Translate para ayudar a los usuarios potenciales a decidir si se adapta a sus necesidades y puede contener errores gramaticales o lingüísticos. La descripción original en inglés también se proporciona a continuación.)

En la primera mitad de este módulo, los estudiantes identifican atributos medibles de objetos en términos de longitud, peso y capacidad. Los estudiantes aprenden palabras como pequeñas, grandes, cortas, altas, vacías, llenas, pesadas y ligeras para que tengan el vocabulario necesario para describir objetos (PK.MD.1). La comparación de la longitud, el peso y la capacidad conduce naturalmente a discusiones sobre la cantidad y el número. En la segunda mitad, la medición está conectada a la cantidad, ya que los estudiantes razonan si hay suficientes, más que, menos o el mismo número de objetos en un conjunto utilizando estrategias de coincidencia y de conteo (PK.CC.5). La comparación de conjuntos de concreto conduce a comparar cantidades y números abstractos. Los niños también se centrarán en identificarse primero y el último en cantidades de hasta 5 y 10 en diferentes configuraciones (PK.CC.6).

English Description:
In the first half of this module, students identify measurable attributes of objects in terms of length, weight, and capacity.  Students learn words such as small, big, short, tall, empty, full, heavy, and light so that they will have the vocabulary needed to describe objects (PK.MD.1).  The comparison of length, weight, and capacity naturally leads to discussions about quantity and number.  In the second half, measurement is connected to quantity as students reason if there are enough, more than, less than, or the same number of objects in a set using matching and counting strategies (PK.CC.5).  Comparing concrete sets leads to comparing quantities and abstract numbers.  Children will also focus on identifying first and last in quantities up to 5 and 10 in different configurations (PK.CC.6).

Given an assortment of unknown metals to identify, student pairs consider what unique intrinsic (aka intensive) metal properties (such as density, viscosity, boiling or melting point) could be tested. For the provided activity materials (copper, aluminum, zinc, iron or brass), density is the only property that can be measured so groups experimentally determine the density of the "mystery" metal objects. They devise an experimental procedure to measure mass and volume in order to calculate density. They calculate average density of all the pieces (also via the graphing method if computer tools area available). Then students analyze their own data compared to class data and perform error analysis. Through this inquiry-based activity, students design their own experiments, thus experiencing scientific investigation and experimentation first hand. A provided PowerPoint(TM) file and information sheet helps to introduce the five metals, including information on their history, properties and uses.

Normally we find things using landmark navigation. When you move to a new place, it may take you awhile to explore the new streets and buildings, but eventually you recognize enough landmarks and remember where they are in relation to each other. However, another accurate method for locating places and things is using grids and coordinates. In this activity, students will come up with their own system of a grid and coordinates for their classroom and understand why it is important to have one common method of map-making.

In this lesson the students will be able to demonstrate the ability to use a variety of non-standard unit of measurements to measure the length of different objects around the outdoor classroom.

This short video and interactive assessment activity is designed to teach fourth graders about one-step subtraction conversions with compound units (metric units) - word problems.

This lesson unit is intended to help teachers assess how well students are able to: interpret a situation and represent the constraints and variables mathematically; select appropriate mathematical methods to use; explore the effects of systematically varying the constraints; interpret and evaluate the data generated and identify the optimum case, checking it for confirmation; and communicate their reasoning clearly.

This short video and interactive assessment activity is designed to teach fourth graders about which compound unit is longest? (english units).

This short video and interactive assessment activity is designed to teach fourth graders about which compound unit is shortest? (english units).

The output gap is one (of many) economic indicators used by economists to measure the strength of the economy. What exactly is the output gap, and how accurately does it predict the state of the economy? Read the November 2012 issue for an explanation of the output gap and answers to these questions.

This challenging problem and brainteaser gives students an opportunity to compose and decompose polygons to make rectangles.

This short video and interactive assessment activity is designed to give fourth graders an overview of comparison of capacity (gallons, pints, and quarts).

This short video and interactive assessment activity is designed to give fourth graders an overview of conversion among units of measure for capacity (english units).

This short video and interactive assessment activity is designed to give fifth graders an overview of conversion among units of measure for capacity (english units).

Vision is the primary sense of many animals and much is known about how vision is processed in the mammalian nervous system. One distinct property of the primary visual cortex is a highly organized pattern of sensitivity to location and orientation of objects in the visual field. But how did we learn this? An important tool is the ability to design experiments to map out the structure and response of a system such as vision. In this activity, students learn about the visual system and then conduct a model experiment to map the visual field response of a Panoptes robot. (In Greek mythology, Argus Panoptes was the "all-seeing" watchman giant with 100 eyes.) A simple activity modification enables a true black box experiment, in which students do not directly observe how the visual system is configured, and must match the input to the output in order to reconstruct the unseen system inside the box.

This short video and interactive assessment activity is designed to teach third graders about perimeter in grid.

This short video and interactive assessment activity is designed to teach third graders about perimeter of squares and rectangles.

This short video and interactive assessment activity is designed to teach second graders an overview of perimeter.

Personality traits reflect people’s characteristic patterns of thoughts, feelings, and behaviors. Personality traits imply consistency and stability—someone who scores high on a specific trait like Extraversion is expected to be sociable in different situations and over time. Thus, trait psychology rests on the idea that people differ from one another in terms of where they stand on a set of basic trait dimensions that persist over time and across situations. The most widely used system of traits is called the Five-Factor Model. This system includes five broad traits that can be remembered with the acronym OCEAN: Openness, Conscientiousness, Extraversion, Agreeableness, and Neuroticism. Each of the major traits from the Big Five can be divided into facets to give a more fine-grained analysis of someone's personality. In addition, some trait theorists argue that there are other traits that cannot be completely captured by the Five-Factor Model. Critics of the trait concept argue that people do not act consistently from one situation to the next and that people are very influenced by situational forces. Thus, one major debate in the field concerns the relative power of people’s traits versus the situations in which they find themselves as predictors of their behavior.

This interactive Flash animation allows students to explore size estimation in one, two and three dimensions. Multiple levels of difficulty allow for progressive skill improvement. In the simplest level, users estimate the number of small line segments that can fit into a larger line segment. Intermediate and advanced levels offer feature games that explore area of rectangles and circles, and volume of spheres and cubes. Related lesson plans and student guides are available for middle school and high school classroom instruction. Editor's Note: When the linear dimensions of an object change by some factor, its area and volume change disproportionately: area in proportion to the square of the factor and volume in proportion to its cube. This concept is the subject of entrenched misconception among many adults. This game-like simulation allows kids to use spatial reasoning, rather than formulas, to construct geometric sense of area and volume. This is part of a larger collection developed by the Physics Education Technology project (PhET).

Students will raise questions about the natural world and seek answers by making careful observations about the weather. Students will measure, record and describe weather conditions using common tools, like thermometer, anemometer, rain gauge and possibly, light meter.