Deployment Team/Resources/GuideXOGabon: Difference between revisions

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+===Activity Ruler===
+====Activity Summary====
+The activity Ruler offers a collection of metric tools that can be printed or used
+directly on the screen. The student can make the geometry through measurement of
+length, angles and calculations of areas and perimeters. The teacher may need to
+print rules, rapporteurs (half circle), leaves and leaf grid
+millimeter.
+====Affordances of the activity====
+* Students can measure the length of an object (pen, pencil, phone
+portable).
+* Students can measure an angle formed by two rods for example.
+* Students can calculate the areas of squares, rectangles on a grid.
+* Students can use grid sheets to make plans and draw
+graphics.
+====Degree of centrality of the activity====
+Measuring length and angles, the calculation of areas and perimeters of squares and
+rectangles are skills required for students in the fourth grade. The use
+Ruler of the activity presents a high degree of centrality.
+====Application pédagogique 1====
+====''Measuring length and angles''====
+''Level (s)'': 4th grade of primary
+''Knowledge'': The perimeter of a shape or object and the angle.
+''Savoirfaire'':
+Calculate the perimeter and measure the angle.
+''History'':
+The teacher asks students to launch the Ruler and select the first frame.
+With the rule that is on their screen, they must measure the lengths of small objects
+in front of them.
+He asked them to select the second view and use the rapporteur at
+screen for measuring angles formed by two rods, two pens.
+====Application pédagogique 2====
+====''Discover formulas perimeter and area, use these formulas to make
+calculations''====
+''Level (s)'': 4th grade of primary
+''Knowledge'': The perimeter and area
+''Savoirfaire'':
+Making the calculations of perimeter and area
+''History'':
+Students are invited to start the activity Ruler, click on the tab and select Ruler
+the third tool.
+<image Ruler grid>
+On this grid, they must identify a square and discover the formula for the perimeter of this
+square by counting the number of subdivisions on each side. They will then identify
+Other squares in which they will calculate the perimeter using the formula found.
+On this grid, they must also identify a rectangle and find the formula for the perimeter
+of this rectangle by counting the number of subdivisions on each side. They will then
+identify other rectangles which they will calculate the perimeter using the formula
+discovery.
+The second phase is to identify on a square grid and calculate its area in
+counting the number of small squares that are inside the square. The child discovers
+Thus the formula for the area of the square. With this formula, students will identify other
+squares and calculate their areas.
+They will take the same approach to discover the formula for the area of a rectangle
+and use the same formula to calculate the areas identified other rectangles.
+====User Guide of the Ruler====
+You can access the Ruler by clicking on the icon of a rule in the run home.
+<image Home view>
+Once in the activity, click on the Ruler to display the different tools
+measure available.
+<image Ruler toolbar>
+Changing the tools by clicking on the icons shown above.
+It is possible for the teacher to print these tools by making a catch
+screen by pressing the keys 1 Atl simultaneously. The screenshot will appear in
+the Journal. It is therefore possible for the teacher to put it on a USB key, to
+transfer the file to a computer linked to a printer and to print.
 ===Memorize Activity===
 ====Activity Summary====