SESSION #1 : PROPERTIES AND INVESTIGATION OF SYMMETRY SPECIFIC OBJECTIVES At the end of this Unit students will be able to: 1. Define the terms symmetry and asymmetry. VOCABULARY Fold, match, pattern, line of symmetry, asymmetry, symmetrical, vertex, two-dimensional shapes PREVIOUS KNOWLEDGE Students are able to represent two dimensional shapes Students understand the basic concept of congruence (ie. Same size and shape) of two dimensional shapes. SUGGESTED RESOURCES SUGGESTED ASSESSMENT(S) Pictures, Pattern blocks, Dynamic Geometry software, Laptop, Multimedia Projector, Miras Classroom and it’s components, as well as the school environment Students are asked to relate verbally the meaning of symmetry and asymmetry and/or show by giving examples on the board Activity: Using pattern blocks or geoboard to complete missing halves of symmetric shapes Activity sheet - Draw the line(s) of symmetry on 2. Classify patterns and pictures (of architecture, nature, sports, graphic design, and objects that surround them every day) in terms of symmetrical and asymmetrical 3. Use symmetry to predict the form of a complete shape Pattern blocks or Geoboards Miras 4. Identify the different lines of symmetry in Paper cut-outs of the capital letters of the Students identify and list a specified number of items which are symmetrical in the environment and those which are not letters of the alphabet, and numbers SESSION #2 : the given capital letters and numerals PROPERTIES AND APPLICATIONS OF TRANSLATION SPECIFIC OBJECTIVES At the end of this Unit students will be able to: 1. alphabet and the numerals 0 to 9 Define what is a translation VOCABULARY Coordinate/Cartesian plane, coordinates, transformation, translation, image, slide, x-axis, y-axis, origin, point, line segment, plane, object, image PREVIOUS KNOWLEDGE Student can identify the basic twodimensional shapes of a square, a triangle, and a parallelogram. Students are familiar with the concept of Directed Numbers Technological: Students must be able to perform basic mouse manipulations such as point, click and drag, and use a browser for experimenting with the assessment SUGGESTED RESOURCES Pictures of various translations Tangram Pieces Geoboard Coloured Rubber Bands to demonstrate translations of shapes SUGGESTED ASSESSMENT(S) Students are asked to relate verbally what is a translation and/or show by giving examples on the board activities Students must have knowledge of how to draw the Cartesian Plane and : label the x-axis, yaxis, and origin, Plot points in the form (x,y), Deduce the coordinates of given points plotted 2. Identify translations given various objects and their images. 3. Generate geometric patterns using the properties of Given examples and non examples, students in groups of three’s classify given pictures into translations and nontranslations. Students explain verbally the reason(s) for classifying each picture the way they did. Any instrument(s) of their choice: geometric instruments, Colour Pencils, Ruler, etc…. Students will create original individual designs using the concept of translation of shapes of translation their choice 4. Perform translation of a given point and, by extension, a line (as a series of points) on the Cartesian Plane, given the movement in terms of number of units to the left/right and number of units up/down Two Worksheets: On given templates of a Cartesian Plane with a) a number of plotted points, and b) a number of specific line segments respectively, students are required to perform the specified translations given as movement in terms of number of units to the left/right and number of units up/down 5. Perform translation of given shapes (including capital letters of the alphabet) 6. Describe given object and image Graph paper, Graph Board, Whiteboard, Dynamic Geometric Software, Laptop, Multimedia Projector Graph paper, Graph board Worksheets: Perform translation of shapes on graph paper Worksheets: Describe fully translations points/ line segments/ shapes on graph paper as movement in terms of number of units to the right/left and number of units up/down. SESSION #3: (objects and images) given on graph paper PROPERTIES AND APPLICATION OF A SINGLE REFLECTION IN A LINE OR SURFACE SPECIFIC OBJECTIVES At the end of this Unit students will be able to: 1. Define what is a reflection. VOCABULARY PREVIOUS KNOWLEDGE Coordinate/Cartes Student can identify the ian plane, basic two-dimensional coordinates, shapes of a square, a transformation, triangle, and a reflection, x-axis, SUGGESTED RESOURCES Tangram Pieces Mira Reflection Tool SUGGESTED ASSESSMENT(S) Students are asked to relate verbally what is a y-axis, origin, point, line segment, plane, object, image, mirror line, flip, orientation, equidistance, perpendicular parallelogram. Students are familiar with the concept of Directed Numbers Geoboard Coloured Rubber Bands to demonstrate reflection of shapes reflection and/or show by giving examples on the board Pictures of examples and non-examples of reflections Given examples and non examples, students in groups of three’s classify given pictures into Technological: Students must be able to perform basic mouse manipulations such as point, click and drag, and use a browser for experimenting with the assessment activities Students must have knowledge of how to draw the Cartesian Plane and : label the x-axis, y-axis, and origin, Plot points in the form (x,y), Deduce the coordinates of given points plotted 2. Identify reflections given various objects and images. reflections and nonreflections. Students explain verbally the reason(s) for classifying each picture the way they did. 3. Perform reflections of given shapes (including capital letters of the alphabet) and the mirror line. Whiteboard, Dynamic Geometric Software, Laptop, Multimedia Projector Worksheets: 4. Generate patterns using the properties of reflection Any instrument(s) of their choice: geometric instruments, Colour Pencils, Ruler, etc…. Students will create original individual designs using the concept of reflection of shapes of their choice 5. Perform reflection of a given point and, by extension, a line (as a series of points) on the Cartesian Plane, given specific Graph board Graph Paper Long Meter Rule Two Worksheets: On given templates of a Cartesian Plane with a) a number of plotted points, and b) a number of mirror lines specific line segments respectively, students are required to perform reflections given specified mirror lines 6. Deduce the mirror line given the object and image of a reflection Set Squares Graphboard Compass Students are required to find the mirror line given the object and image of a reflection, showing all constructions clearly 7. Describe a reflection fully, in terms of the object, the image and the mirror line Whiteboard, Dynamic Geometric Software, Laptop, Multimedia Projector Worksheets: Students are required to describe, in writing, given diagrams showing various reflections