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2D Representations of 3D Objects
Rating

This lesson unit is intended to help teachers assess how well students are able to visualize two-dimensional cross-sections of representations of three-dimensional objects. In particular, the lesson will help you identify and help students who have difficulties recognizing and drawing two-dimensional cross-sections at different points along a plane of a representation of a three-dimensional object.

Material Type:
Assessment
Lesson Plan
Provider:
Shell Center for Mathematical Education
U.C. Berkeley
Provider Set:
Mathematics Assessment Project (MAP)
Mathematics Assessment Project (MAP)
Date Added:
04/26/2013
2D Rotation Using Matrices
Conditions of Use:
Remix and Share
Rating

This Demonstration illustrates the concept of rotating a 2D polygon. The rotation matrix is displayed for the current angle. The default polygon is a square that you can modify.

Material Type:
Activity/Lab
Diagram/Illustration
Homework/Assignment
Interactive
Simulation
Teaching/Learning Strategy
Provider:
Wolfram Research
Provider Set:
Wolfram Demonstrations Project
Author:
Mito Are and Valeria Antohe
Date Added:
09/04/2013
36 Arabic Stories for Kids
Rating

This page contains links to thirty-six stories children's stories written in Arabic. Many of the stories include morals or other teaching moments. Each page of every story has small illustrations for difficult words at the bottom to help make reading easier for both native and non-native speakers. The stories move from easy to more difficult. The stories are fully voweled.

Material Type:
Reading
Provider:
Dar al-Manhar
Date Added:
10/14/2013
7 Short Stories
Rating

This is a collection of one page stories brought together in one document available for free download. Each page/story corresponds with a day of the week, although the stories themselves have no connection with one another. The stories include moral lessons. Each story is fully voweled.

Material Type:
Reading
Provider:
bookstolearnarabic
Date Added:
10/14/2013
AAS Congruent Triangles
Conditions of Use:
Read the Fine Print
Rating

An interactive applet and associated web page that shows how triangles that have two angles and a non-included side the same must be congruent. The applet shows two triangles, one of which can be reshaped by dragging any vertex. The other changes to remain congruent to it and the two angles and non-included side are outlined in bold to show they are the same measure and are the elements being used to prove congruence. The web page describes all this and has links to other related pages. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

Material Type:
Reading
Simulation
Provider:
Math Open Reference
Author:
John Page
Date Added:
02/16/2011
A-CED Regular Tessellations of the plane
Conditions of Use:
No Strings Attached
Rating

This task examines the ways in which the plane can be covered by regular polygons in a very strict arrangement called a regular tessellation. These tessellations are studied here using algebra, which enters the picture via the formula for the measure of the interior angles of a regular polygon (which should therefore be introduced or reviewed before beginning the task). The goal of the task is to use algebra in order to understand which tessellations of the plane with regular polygons are possible.

Material Type:
Activity/Lab
Provider:
Illustrative Mathematics
Provider Set:
Illustrative Mathematics
Author:
Illustrative Mathematics
Date Added:
01/21/2013
المعادلات والمتباينات والمقادير الجبرية
Conditions of Use:
قراءة النص المطبوع بخط رفيع
Rating

يدور هذا الدرس حول محاولة جعل الطلاب يقيمون روابط بين الأفكار عن المعادلات والمتباينات والمقادير الجبرية. علماً بأن الدرس مصمم ليمنح الطلاب فرص استخدام المفردات الرياضية لغرض الوصف والمناقشة والعمل مع سلاسل الرموز هذه. وتهدف الفكرة إلى بدء الطلاب في تحصيل المعلومة الشاملة بالنظر إلى كامل سلسلة الأعداد بدلاً من التفكير فقط في إجراءات أو خطوات فردية. ومن المأمول أن يبدأ الطلاب في رؤية سلاسل الرموز كأغراض رياضية لها مجموعتها الفريدة من الصفات الخاصة بها. (رياضيات الصف السابع)

نوع المادة:
Activity/Lab
Lecture
Lesson Plan
Teaching/Learning Strategy
Provider:
Noyce Foundation
Provider Set:
في قلب الرياضيات
المؤلف:
Disston, Jacob
Date Added:
11/30/2011
Alpha Decay (AR)
Conditions of Use:
Read the Fine Print
Rating

Watch alpha particles escape from a polonium nucleus, causing radioactive alpha decay. See how random decay times relate to the half life.

Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Danielle Harlow
John Blanco
Kathy Perkins
Noah Podolefsky
Ron LeMaster
Sam McKagan
Wendy Adams
Date Added:
09/02/2012
تحليل براهين التطابق
Rating

يهدف هذا الدرس لمساعدة المعلمين على تقييم مدى نجاح الطلاب في: العمل مع مفاهيم التطابق والتشابه، بما في ذلك تحديد الأضلاع المتناظرة والزوايا المتطابقة في المثلثات وبينها؛ وتحديد أهمية وجود المثال المضاد وفهمها؛ اثبات البراهين في سياق هندسي و تقييمها.

نوع المادة:
التقييم
Lesson Plan
Provider:
Shell Center for Mathematical Education
U.C. Berkeley
Provider Set:
Mathematics Assessment Project (MAP)
Mathematics Assessment Project (MAP)
Date Added:
04/26/2013
Angle Hunting
Conditions of Use:
Remix and Share
Rating

In this activity, learners use a hand-made protractor to measure angles they find in playground equipment. Learners will observe that angle measurements do not change with distance, because they are distance invariant, or constant. Note: The "Pocket Protractor" activity should be done ahead as a separate activity (see related resource), but a standard protractor can be used as a substitute.

Material Type:
Activity/Lab
Provider:
Exploratorium
Author:
Exploratorium
Gordon and Betty Moore Foundation
National Science Foundation
The Exploratorium
Date Added:
12/07/2010
Animal Populations
Conditions of Use:
No Strings Attached
Rating

In this task students have to interpret expressions involving two variables in the context of a real world situation. All given expressions can be interpreted as quantities that one might study when looking at two animal populations.

Material Type:
Activity/Lab
Provider:
Illustrative Mathematics
Provider Set:
Illustrative Mathematics
Author:
Illustrative Mathematics
Date Added:
05/01/2012
Ant and Elephant
Conditions of Use:
No Strings Attached
Rating

In this problem students are comparing a very small quantity with a very large quantity using the metric system. The metric system is especially convenient when comparing measurements using scientific notations since different units within the system are related by powers of ten.

Material Type:
Activity/Lab
Provider:
Illustrative Mathematics
Provider Set:
Illustrative Mathematics
Author:
Illustrative Mathematics
Date Added:
05/01/2012
Antarctic Food Web Game
Conditions of Use:
Read the Fine Print
Rating

In this interactive game adapted from the Bigelow Laboratory for Ocean Sciences, build a food web that illustrates the flow of energy in an Antarctic ecosystem and the relationships between predators and prey.

Material Type:
Activity/Lab
Interactive
Provider:
PBS LearningMedia
Provider Set:
PBS Learning Media Common Core Collection
Teachers' Domain
Author:
National Science Foundation
WGBH Educational Foundation
Date Added:
08/09/2007
Ants versus humans
Conditions of Use:
No Strings Attached
Rating

This task requires students to work with very large and small values expressed both in scientific notation and in decimal notation (standard form). In addition, students need to convert units of mass.

Material Type:
Activity/Lab
Provider:
Illustrative Mathematics
Provider Set:
Illustrative Mathematics
Author:
Illustrative Mathematics
Date Added:
08/21/2012
Application of Derivatives
Conditions of Use:
Remix and Share
Rating

We use the derivative to determine the maximum and minimum values of particular functions (e.g. cost, strength, amount of material used in a building, profit, loss, etc.).Differentiation is also used in analysis of finance and economics.

Material Type:
Simulation
Provider:
GeoGebra
Provider Set:
GeoGebraTube
Date Added:
03/12/2012
تطبيق نظريات الزوايا
Rating

يهدف هذا الدرس لمساعدتك في تقييم مدى نجاح الطلاب باستخدام الخصائص الهندسية من أجل حل المشاكل. على وجه الخصوص، سوف تدعمكم في تحديد ومساعدة الطلاب الذين لديهم الصعوبات التالية: حل المشاكل المتعلقة باستخدام قياسات الزوايا الداخلية للمضلعات؛ وحل المشاكل المتعلقة باستخدام قياسات الزوايا الخارجية للمضلعات.

نوع المادة:
التقييم
Lesson Plan
Provider:
Shell Center for Mathematical Education
U.C. Berkeley
Provider Set:
Mathematics Assessment Project (MAP)
Mathematics Assessment Project (MAP)
Date Added:
04/26/2013
Arabic 4 Fun
Rating

Arabic 4 fun includes five categories: alphabet, numbers, shapes, colors, and fruit names. Within each category, there is an introduction which explains the lesson, three exercises (easy, medium, & hard), and a memory game. The memory game includes the words written out in Arabic. The user may self-study or watch the explained lesson.

Material Type:
Activity/Lab
Game
Interactive
Provider:
Belinda D. Finnemeyer and licensors
Date Added:
10/14/2013
Arabic 4 Us
Rating

Arabic 4 us is a site dedicated to children's material. It features a number of lessons on basic words, numbers, and the alphabet. Additionally, the site features content on the Qur'an, brief prayers, and religious songs. There is a separate section for parents which allows them to print material categorized by each letter of the alphabet, which would provide words to their children to memorize.

Material Type:
Activity/Lab
Provider:
Arabic Rescue
Date Added:
10/14/2013
Arabic Alphabet Tutorial
Rating

This website shows images and video of the Arabic letters. It has two sections, one with the Arabic letters in their independent, unconnected forms, and a second showing the letters in all of their various connected forms. Both sections offer videos that show a calligrapher writing out each form of each letter. Videos of the connected letters include words that demonstrate the initial, medial, and final positions of each letter.

Material Type:
Reading
Provider:
Stanford University
Date Added:
11/06/2012