Perimeter of Polygons
Students will calculate the perimeter of various polygons, including irregular shapes.
Key Questions
- Explain the difference between perimeter and area.
- Design a scenario where calculating perimeter is crucial for a practical task.
- Compare different methods for finding the perimeter of complex shapes.
NCCA Curriculum Specifications
About This Topic
Linocut and Relief Printing introduce 6th Class students to the world of graphic reproduction. Students learn to carve a design into a soft block (like lino or 'easy-carve' blocks), apply ink, and transfer the image to paper. This aligns with the NCCA Print strand, focusing on the unique qualities of the relief process, bold lines, high contrast, and the ability to create multiple editions of the same work.
This topic requires a high level of planning and 'reverse thinking,' as the printed image will be a mirror reflection of the carved block. It connects to History through the study of early printing presses and the spread of information. This topic is most successful when students use a 'peer-review' system to check their designs before carving, ensuring they understand which parts will be 'white' (carved away) and which will be 'black' (left raised).
Active Learning Ideas
Think-Pair-Share: The Mirror Challenge
Students write their name on a small piece of paper and hold it up to a mirror. They then try to write it 'backwards' so it looks correct in the mirror. This simple activity helps them grasp the concept of 'reversal' before they start carving their lino blocks.
Stations Rotation: The Printing Press
Set up three stations: 'The Inking Station' (using rollers/brayers), 'The Pressing Station' (using a barren or clean roller), and 'The Drying Station.' Students move through the stations in small groups to produce a 'limited edition' of three prints each.
Inquiry Circle: Texture Trials
Before starting their main design, students use a small scrap of lino to test different carving tools (V-gouges vs. U-gouges). They create a 'texture cheat sheet' showing the difference between a thin line, a thick line, and a 'stippled' area.
Watch Out for These Misconceptions
Common MisconceptionStudents often forget that the parts they carve away will be the color of the paper (usually white).
What to Teach Instead
They often try to 'draw' with the tool as if it's a pen. Using a 'black and white' marker to plan the design first helps them visualize that they are 'carving the light' and leaving the 'darkness' behind.
Common MisconceptionThinking that more ink will make a 'better' print.
What to Teach Instead
Too much ink fills in the fine carved lines, resulting in a blurry mess. A 'hands-on' demonstration of the 'velvety' sound a correctly inked roller makes helps them judge the right amount of ink by ear and sight.
Suggested Methodologies
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Frequently Asked Questions
How can active learning help students with the complexity of printmaking?
Is lino carving safe for 11 and 12-year-olds?
What is a 'limited edition' in printmaking?
How can I integrate this with the History curriculum?
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