Teaching pack · Year 7 Measurementseegongsik /au
Area of triangles and parallelograms: a week of ready-to-teach maths
Five days of lessons for Year 7 Measurement. Print this pack and the week is prepared.
AC9M7M01
solve problems involving the area of triangles and parallelograms using established formulas and 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 parallelogram is a rectangle”, “A triangle is half a parallelogram”, “A triangle fills half its rectangle”, “A complex shape is pieces added”, “Area needs the right square unit”.
seegongsik.com/au/y7/measurement/AC9M7M01
Aligned to Australian Curriculum V9 (AC9M7M01). 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 parallelogram is a rectangle | Practise the idea with talk, board and worksheet | Board: A parallelogram is a rectangle |
| 2 | A triangle is half a parallelogram | Practise the idea with talk, board and worksheet | Board: A triangle is half a parallelogram |
| 3 | A triangle fills half its rectangle | Practise the idea with talk, board and worksheet | Board: A triangle fills half its rectangle |
| 4 | A complex shape is pieces added | Practise the idea with talk, board and worksheet | Board: A complex shape is pieces added |
| 5 | Area needs the right square unit | Practise the idea with talk, board and worksheet | Board: Area needs the right square unit |
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 of triangles and parallelograms. Ask: What did you practise today?
seegongsik.com/au/y7/measurement/AC9M7M01/pack
Day 1 · Teacher planDay 1 of 5
A parallelogram is a rectangle
Children practise “A parallelogram is a rectangle” with talk, the board picture, and a short worksheet. About 40 minutes.
We are learning to
- explain a parallelogram is a rectangle in Year 7 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 parallelogram is a rectangle”,
- 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 parallelogram is a rectangle”. 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 parallelogram is a rectangle” on screen for the main block.
seegongsik.com/au/y7/measurement/AC9M7M01
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 parallelogram is a rectangle.
Day 1 · Worksheet
A parallelogram is a rectangle
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
A triangle is half a parallelogram
Children practise “A triangle is half a parallelogram” with talk, the board picture, and a short worksheet. About 40 minutes.
We are learning to
- explain a triangle is half a parallelogram in Year 7 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 triangle is half a parallelogram”,
- 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 triangle is half a parallelogram”. 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 triangle is half a parallelogram” on screen for the main block.
seegongsik.com/au/y7/measurement/AC9M7M01
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 triangle is half a parallelogram.
Day 2 · Worksheet
A triangle is half a parallelogram
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
A triangle fills half its rectangle
Children practise “A triangle fills half its rectangle” with talk, the board picture, and a short worksheet. About 40 minutes.
We are learning to
- explain a triangle fills half its rectangle in Year 7 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 triangle fills half its rectangle”,
- 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 triangle fills half its rectangle”. 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 triangle fills half its rectangle” on screen for the main block.
seegongsik.com/au/y7/measurement/AC9M7M01
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 triangle fills half its rectangle.
Day 3 · Worksheet
A triangle fills half its rectangle
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
A complex shape is pieces added
Children practise “A complex shape is pieces added” with talk, the board picture, and a short worksheet. About 40 minutes.
We are learning to
- explain a complex shape is pieces added in Year 7 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 complex shape is pieces added”,
- 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 complex shape is pieces added”. 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 complex shape is pieces added” on screen for the main block.
seegongsik.com/au/y7/measurement/AC9M7M01
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 complex shape is pieces added.
Day 4 · Worksheet
A complex shape is pieces added
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
Area needs the right square unit
Children practise “Area needs the right square unit” with talk, the board picture, and a short worksheet. About 40 minutes.
We are learning to
- explain area needs the right square unit in Year 7 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 needs the right square unit”,
- 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 needs the right square unit”. 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 needs the right square unit” on screen for the main block.
seegongsik.com/au/y7/measurement/AC9M7M01
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 needs the right square unit.
Day 5 · Worksheet
Area needs the right square unit
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 of triangles and parallelograms
Cut out. Hold up a card and give an example.
A parallelogram is a rectangle
Give an example.
A triangle is half a parallelogram
Give an example.
A triangle fills half its rectangle
Give an example.
A complex shape is pieces added
Give an example.
Area needs the right square unit
Give an example.
Store in an envelope labelled AC9M7M01.
Mini-check · End of week
Show what you know: Area of triangles and parallelograms
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 of triangles and parallelograms) 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.