| Name of Activity: | Build Your Own Hexagon! |
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| Objective: | In the end of the lesson, students will be able to- identify the hexagonal numbers.
- draw the regular hexagon in correct growing sequence on graph paper.
- explain the pattern of hexagonal numbers.
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| Resources/Materials: | Graph papers, carbon papers, manila card, red pen, pencil, string and scissor |
| Detailed description: | - Teacher refreshes the students’ prior knowledge toward shape of hexagon.
- Five of the students in class are required to draw the shape of hexagon on the blackboard.
- Teacher checks each drawing with the class to ensure every student can identify the hexagonal shape.
- Teacher distributes the students into pairs.
- Teacher provides each pair with four graph papers and three carbon papers.
- A manila card (table) is distributed to each pair.
- Teacher states instruction of the activity clearly:
- Put five sheets of graph papers together.
- Attach one carbon paper under each graph paper.
- For the graph paper that placed on top, draw a dot using red pen at the centre of its left side.
- The red dot will add as the centre for every hexagon.
- Start sketching the first hexagon by adding and join several numbers of dots.
- Repeat placing dots to draw four hexagons in a growing sequence.
- Record and draw the amount of dots that needed for each hexagon.
- Remove the carbon papers.
- Cut and collect four sequences of hexagons from the graph papers. Cut only one size of hexagon from each graph paper.
- Arrange the hexagons that have been cut in a growing order.
- Make a hold on top of them and tie with a string.
- Every pair of students is required to show their product and present the hexagon numbers that filled in table.
- Teacher discusses the table together with students.
- Teacher evaluate the understanding of students toward the hexagon numbers by asking questions:
- What can you notice from the hexagonal numbers in your table?
- Does it show any pattern?
- What is the number that comes along for the 7th hexagon?
- Students paste the hexagons with the table in the class.
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