Teaching pack · Year 8 Measurementseegongsik /au
Area and Perimeter: a week of ready-to-teach maths
Five days of lessons for Year 8 Measurement. Print this pack and the week is prepared.
AC9M8M01
solve problems involving the area and perimeter of irregular and composite shapes using appropriate units
Start here: five minutes to Monday
- Skim the week at a glance.
- Print the five days (plan + worksheet each).
- Cut out the card sheet once.
- Open the free interactive unit on your board.
- Teach from the plan.
On the board
On-screen pictures: “A composite shape splits into rectangles”, “Area by adding the pieces”, “Area by subtracting a piece”, “Perimeter is the outside edge only”, “Estimating area on a grid”.
seegongsik.com/au/y8/measurement/AC9M8M01
Aligned to Australian Curriculum V9 (AC9M8M01). Original material from seegongsik. Descriptors (c) ACARA, CC BY 4.0.
The week at a glance5 lessons
The week at a glance
One lesson a day. Run them in order where you can.
| Day | Lesson | Children learn and do | On screen |
|---|---|---|---|
| 1 | A composite shape splits into rectangles | Practise the idea with talk, board and worksheet | Board: A composite shape splits into rectangles |
| 2 | Area by adding the pieces | Practise the idea with talk, board and worksheet | Board: Area by adding the pieces |
| 3 | Area by subtracting a piece | Practise the idea with talk, board and worksheet | Board: Area by subtracting a piece |
| 4 | Perimeter is the outside edge only | Practise the idea with talk, board and worksheet | Board: Perimeter is the outside edge only |
| 5 | Estimating area on a grid | Practise the idea with talk, board and worksheet | Board: Estimating area on a grid |
Materials
- This pack printed.
- Pencils and the board or projector.
- Optional counters or rulers if a day plan names them.
A note home
This week in maths we work on area and perimeter. Ask: What did you practise today?
seegongsik.com/au/y8/measurement/AC9M8M01/pack
Day 1 · Teacher planDay 1 of 5
A composite shape splits into rectangles
Children practise “A composite shape splits into rectangles” with talk, the board picture, and a short worksheet. About 40 minutes.
We are learning to
- explain a composite shape splits into rectangles in Year 8 words,
- use the board picture to check thinking,
- record an example on paper.
Success criteria
- I can show one example of today’s idea.
- I can say the idea in a short sentence.
You need
- interactive unit open on “A composite shape splits into rectangles”,
- worksheet (next sheet), one per child,
Lesson flow (about 40 minutes)
| 5 min | Warm-up Ask: “What might help us today?” |
| 10 min | On the board Open “A composite shape splits into rectangles”. Ask: “What changed on the screen?” |
| 15 min | Worksheet Children complete the day sheet. |
| 10 min | Share Ask: “In one sentence, what was today’s idea?” |
On the board
Leave “A composite shape splits into rectangles” on screen for the main block.
seegongsik.com/au/y8/measurement/AC9M8M01
Watch for
- Skipping the board -- bring them back to the picture.
- Correct answer with no explanation -- ask how do you know?
Answers and look-fors
- Meeting the idea sounds like a clear sentence about a composite shape splits into rectangles.
Day 1 · Worksheet
A composite shape splits into rectangles
NameClassDate
Use the board picture. Show your thinking.
1. Draw or write one example from the board.
2. What is the main idea in your words?
3. Make a second example of your own.
I know I am right because
I can teach this idea to a partner:Yes □ No □
Day 2 · Teacher planDay 2 of 5
Area by adding the pieces
Children practise “Area by adding the pieces” with talk, the board picture, and a short worksheet. About 40 minutes.
We are learning to
- explain area by adding the pieces in Year 8 words,
- use the board picture to check thinking,
- record an example on paper.
Success criteria
- I can show one example of today’s idea.
- I can say the idea in a short sentence.
You need
- interactive unit open on “Area by adding the pieces”,
- worksheet (next sheet), one per child,
Lesson flow (about 40 minutes)
| 5 min | Warm-up Ask: “What might help us today?” |
| 10 min | On the board Open “Area by adding the pieces”. Ask: “What changed on the screen?” |
| 15 min | Worksheet Children complete the day sheet. |
| 10 min | Share Ask: “In one sentence, what was today’s idea?” |
On the board
Leave “Area by adding the pieces” on screen for the main block.
seegongsik.com/au/y8/measurement/AC9M8M01
Watch for
- Skipping the board -- bring them back to the picture.
- Correct answer with no explanation -- ask how do you know?
Answers and look-fors
- Meeting the idea sounds like a clear sentence about area by adding the pieces.
Day 2 · Worksheet
Area by adding the pieces
NameClassDate
Use the board picture. Show your thinking.
1. Draw or write one example from the board.
2. What is the main idea in your words?
3. Make a second example of your own.
I know I am right because
I can teach this idea to a partner:Yes □ No □
Day 3 · Teacher planDay 3 of 5
Area by subtracting a piece
Children practise “Area by subtracting a piece” with talk, the board picture, and a short worksheet. About 40 minutes.
We are learning to
- explain area by subtracting a piece in Year 8 words,
- use the board picture to check thinking,
- record an example on paper.
Success criteria
- I can show one example of today’s idea.
- I can say the idea in a short sentence.
You need
- interactive unit open on “Area by subtracting a piece”,
- worksheet (next sheet), one per child,
Lesson flow (about 40 minutes)
| 5 min | Warm-up Ask: “What might help us today?” |
| 10 min | On the board Open “Area by subtracting a piece”. Ask: “What changed on the screen?” |
| 15 min | Worksheet Children complete the day sheet. |
| 10 min | Share Ask: “In one sentence, what was today’s idea?” |
On the board
Leave “Area by subtracting a piece” on screen for the main block.
seegongsik.com/au/y8/measurement/AC9M8M01
Watch for
- Skipping the board -- bring them back to the picture.
- Correct answer with no explanation -- ask how do you know?
Answers and look-fors
- Meeting the idea sounds like a clear sentence about area by subtracting a piece.
Day 3 · Worksheet
Area by subtracting a piece
NameClassDate
Use the board picture. Show your thinking.
1. Draw or write one example from the board.
2. What is the main idea in your words?
3. Make a second example of your own.
I know I am right because
I can teach this idea to a partner:Yes □ No □
Day 4 · Teacher planDay 4 of 5
Perimeter is the outside edge only
Children practise “Perimeter is the outside edge only” with talk, the board picture, and a short worksheet. About 40 minutes.
We are learning to
- explain perimeter is the outside edge only in Year 8 words,
- use the board picture to check thinking,
- record an example on paper.
Success criteria
- I can show one example of today’s idea.
- I can say the idea in a short sentence.
You need
- interactive unit open on “Perimeter is the outside edge only”,
- worksheet (next sheet), one per child,
Lesson flow (about 40 minutes)
| 5 min | Warm-up Ask: “What might help us today?” |
| 10 min | On the board Open “Perimeter is the outside edge only”. Ask: “What changed on the screen?” |
| 15 min | Worksheet Children complete the day sheet. |
| 10 min | Share Ask: “In one sentence, what was today’s idea?” |
On the board
Leave “Perimeter is the outside edge only” on screen for the main block.
seegongsik.com/au/y8/measurement/AC9M8M01
Watch for
- Skipping the board -- bring them back to the picture.
- Correct answer with no explanation -- ask how do you know?
Answers and look-fors
- Meeting the idea sounds like a clear sentence about perimeter is the outside edge only.
Day 4 · Worksheet
Perimeter is the outside edge only
NameClassDate
Use the board picture. Show your thinking.
1. Draw or write one example from the board.
2. What is the main idea in your words?
3. Make a second example of your own.
I know I am right because
I can teach this idea to a partner:Yes □ No □
Day 5 · Teacher planDay 5 of 5
Estimating area on a grid
Children practise “Estimating area on a grid” with talk, the board picture, and a short worksheet. About 40 minutes.
We are learning to
- explain estimating area on a grid in Year 8 words,
- use the board picture to check thinking,
- record an example on paper.
Success criteria
- I can show one example of today’s idea.
- I can say the idea in a short sentence.
You need
- interactive unit open on “Estimating area on a grid”,
- worksheet (next sheet), one per child,
Lesson flow (about 40 minutes)
| 5 min | Warm-up Ask: “What might help us today?” |
| 10 min | On the board Open “Estimating area on a grid”. Ask: “What changed on the screen?” |
| 15 min | Worksheet Children complete the day sheet. |
| 10 min | Share Ask: “In one sentence, what was today’s idea?” |
On the board
Leave “Estimating area on a grid” on screen for the main block.
seegongsik.com/au/y8/measurement/AC9M8M01
Watch for
- Skipping the board -- bring them back to the picture.
- Correct answer with no explanation -- ask how do you know?
Answers and look-fors
- Meeting the idea sounds like a clear sentence about estimating area on a grid.
Day 5 · Worksheet
Estimating area on a grid
NameClassDate
Use the board picture. Show your thinking.
1. Draw or write one example from the board.
2. What is the main idea in your words?
3. Make a second example of your own.
I know I am right because
I can teach this idea to a partner:Yes □ No □
Cut-out cardsReuse all week
Talk cards for Area and Perimeter
Cut out. Hold up a card and give an example.
A composite shape splits into rectangles
Give an example.
Area by adding the pieces
Give an example.
Area by subtracting a piece
Give an example.
Perimeter is the outside edge only
Give an example.
Estimating area on a grid
Give an example.
Store in an envelope labelled AC9M8M01.
Mini-check · End of week
Show what you know: Area and Perimeter
NameClassDate
Work on your own. Use pictures or numbers.
1. Draw or write the big idea of this week.
2. Give one clear example.
3. Give a second different example.
4. What mistake should we watch for?
I can explain this idea to a partner:Yes □ No □
Mini-check · AnswersTeacher
Answers and look-fors
- Item 1 names the unit idea (area and perimeter) in child words.
- Items 2-3: two different correct examples.
- Item 4: a real muddle for this topic.
Use day-plan look-fors across the week.