MEASUREMENT-DIRECT COMPARISON AND NON-STANDARD UNITS 1/3
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MEASUREMENT-DIRECT COMPARISON AND NON-STANDARD UNITS 1/3
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Each pupil has one sheet of origami paper.
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Use the correct origami paper in order to enable folding flexibility.
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Folding instructions: Fold opposite parallel sides of the sheet.
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Folding instructions:Fold opposite parallel sides as shown.
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Activity: Compare your pencil and it’s length with your measuring tool. What did you discover?
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This stage of measurement is direct comparison of lengths of the objects.
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A discussion question: Is the length of your pencil like one of the pictures? Which one?
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This stage of measurement is direct comparison of lengths of the objects.
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A pair activity: With your measurement tool compare the lengths of the 4 sides of your table.
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מדידת השולחן עם המודד היא מדידה באמצעות מתווך.
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A pair activity: With your measurement tool compare the height of your table. Do all of the tables in your classroom have the same height?
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Folding instructions: Open one fold of your measurement tool.
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A pair activity: Join your two measuring activities as shown.
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A pair activity: Join your two measuring activities using the two parallel sides of your shapes.
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A pair activity: Use your joined tools to find the number of times it takes to measure the perimeter of your table.
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A discussion question: Compare the perimeter measurements using the shorter measurement tool and also using the longer measurement tool made by joining your shapes.
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Pupils will conclude that using a non-standard tool for measurement which is longer than another shorter one will always give a measurement that is smaller.
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A discussion question: Are the perimeters of all tables in the classroom the same length? Did each pair have the same result?
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If the classroom has tables of different sizes there will be different measurements. In the same way if the length of the joined measuring tool is different with each pair then the measurement lengths will be different.
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A pair activity: Choose two objects in your classroom that their lengths cannot be directly compared. What did you discover?
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Measurement using non-standard units: When the lengths of two objects cannot be measured directly a non-standard unit of measurement is used. For example it is only possible to compare the lengths of a door and a table using a non-standard unit of measurement.
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Folding instructions: Sepשrate the joined measurement tools.
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Folding instructions: Fold the shorter sides of your measurement tool onto each other.
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Folding instructions: Fold one square onto the other as shown.
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Folding instructions: Fold two vertices of the shown square.
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Folding instructions: Enter a finger into the rectangular shape.
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Design your model as you wish.
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Each pupil should describe his own design.
- Lesson Aims
- Pupils will investigate measurement by direct comparison and by non-standard units.
- Pupils will compare lengths of a certain object.
- Pupils use the measurement tool as a non-standrad unit for measuring lengths.
- Name of Model
A finger snake
- Lesson Structure
According to curriculum.
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- Materials
Origami sheets 15cm x15 cm
