Digital Cameras              

Digital cameras are excellent tools for enhancing the math classroom.  They can also assist with applications under the current math reform movement, moving away from isolated problems in a drill-and-practice format to authentic experiences and problem solving.  

Digital images can be used to help demonstrate accomplishment of standards such as National Council  for Teachers of Mathematics (NCTM) standards for Algebra, Geometry and Measurement.  For example, you could apply standards by having images that allow students to measure and compare sides, shape and angles by using images as models.  

The NCTM standards include the statement that "Similarity also can be related to such real-world contexts as photographs, models, projections of pictures" which can be an excellent application of a digital image. "Students at all levels should have opportunities to model a wide variety of phenomena mathematically in ways that are appropriate to their level. "Additionally while interacting with the digital images, students are also meeting the national technology standard (ISTE) specifying that students use technology tools to publish and interact with peers, experts and other audiences. Using digital images can provide documentation for the teacher, and allow for the creation of more authentic assessment tools and examples.

Digital cameras are excellent tools for enhancing the math classroom.  They can also assist with applications under the current math reform movement, moving away from isolated problems in a drill-and-practice format to authentic experiences and problem solving.  

Digital images can be used to help demonstrate accomplishment of standards such as National Council  for Teachers of Mathematics (NCTM) standards for Algebra, Geometry and Measurement.  For example, you could apply standards by having images that allow students to measure and compare sides, shape and angles by using images as models.  

Images can be used to develop and provide concrete examples of geometric shapes, symmetry and patterns, such as tessellations. Additionally, digital cameras can be used for math applications covering topics such as direct and indirect measurement, man-made and natural geometry, money and counting, measurement and scale, and the congruency and similarity.

Use your digital camera to demonstrate perspective by showing objects situated at different distances, or set up a discrepant event as displayed in this image where a known larger object appears smaller than a comparative known smaller object.

descrepant.jpg (12687 bytes) 

Scale and measurements:  Use your camera to capture objects at the same distance to calculate the height of an unknown object or to calculate the volume of an object. Geometric shapes are shown here with the lighthouses as cylinder and conic sections. 

 

st_a_lig.jpg (27575 bytes) 

You can enhance through photo-manipulation existing geometric shapes by adding highlights to the images to outline the shapes.  In this image, a picture of the front of a building was enhanced to show the basic shapes on the building, including the triangle, rectangle, semicircle, square, and others.

  

Show objects that demonstrate structural strength, tension, and construction using geometry.  In these photos a bridge which uses the basic structural shape of triangles with the tension wires in the shape of the bridge.

 

Demonstrate math manipulatives. Using a camera with live video output, students can participate in problem-solving while watching the steps on a large screen TV.  The images can then be included in assessment tools, with the advantage of being more authentic. 

 

Show objects or shapes that demonstrate understanding of congruency and similarity.           

  

Take pictures that show geometric transformations: Flips, Slide and Turns. Use the images to create a multimedia presentation.