CK-12 Foundation's Geometry FlexBook is a clear presentation of the essentials of geometry for the high school student. Topics include: Proof, Congruent Triangles, Quadrilaterals, Similarity, Perimeter & Area, Volume, and Transformations.
In this video segment from Cyberchase, the CyberSquad measures Judge Trudy's land claim by using tarps, fence posts and a grid made with rope.
In this video tutorial, the instructor demonstrates how to determine how to calculate the area of a rectangle and assess knowledge with a quiz. [3:01]
Use different size triangle to determine how to solve for the area in this video lesson. Take quiz to check understanding. [3:41]
This video lesson demonstrates how to calculate the area of a triangle. It includes detailed examples including ones that use the Pythagorean Theorem. Students can check their understanding with an assessment. [10:43]
Learn from a construction manager at a major construction firm about how drawings are made and how quality control is performed. Hear about safety, change orders and the importance of following the budget.
Learners explore the concepts of rate and ratio in a variety of problem-solving situations. Worksheets contain definitions and visual representations of concepts. Link to related ratio game. Other skills include measurement, data analysis, and number sense. Acrobat Reader required.
The CyberSquad proves that the area of Hacker's land is equal to the area of Judge Trudy's land in this video segment from Cyberchase.
The CyberSquad proves that the area of Hacker's land is equal to the area of Judge Trudy's land in this video segment from Cyberchase.
This lesson introduces the concept of conversion of squared units between units and systems of measurement. It is 4 of 5 in the series titled "Conversion of Square Units." [3:31]
This lesson demonstrates how to convert between units in the metric system, when working with squared units.
This lesson [2:31] demonstrates how to convert between units in the metric system, when working with squared units. It is 1 of 8 in the series titled "Converting Square Units in the Metric System."
Blossom and Snappy redecorate the messy garage which involves measuring lengths and calculating area. They learn some ideas on redecoration by visiting a furniture store, a neon company, and an art supply store. They turn junk into decorations.
Demonstrates how to break an irregular shape into three rectangles, find the individual areas, and then add them together. [3:36]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Demonstrates how to break an irregular shape into its parts, find the individual areas, and then add them together. [2:51]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Demonstrates how to find the area of a rectangular shape enclosed by another rectangle and with a third one inside it. [3:12]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Through this lesson and its two associated activities, students are introduced to the use of geometry in engineering design, and conclude by making scale models of objects of their choice. The practice of developing scale models is often used in engineering design to analyze the effectiveness of proposed design solutions. In this lesson, students complete fencing (square) and fire pit (circle) word problems on two worksheets—which involves side and radius dimensions, perimeters, circumferences and areas—guiding them to discover the relationships between the side length of a square and its area, and the radius of a circle and its area. They also think of real-world engineering applications of the geometry concepts.
The purpose of this task is to strengthen students' understanding of area. It could be assigned in class to individuals or small groups or given as a homework exercise to generate interesting discussions the following day. The relatively high levels of complexity and technical demand enhance its instructional value.
This site has a colorful display of information about Oregon. It contains a map, pictures, a list of state symbols, and links to related information.
Sal determines if shapes are divided into 2 or 4 equal sections.
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.