New
New
Year 1
Explore, discuss and identify shapes that are and are not rectangles
I can say if a shape is a rectangle or not and explain why.
New
New
Year 1
Explore, discuss and identify shapes that are and are not rectangles
I can say if a shape is a rectangle or not and explain why.
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Lesson details
Key learning points
- Rectangles have 4 straight sides.
- Rectangles have 4 vertices that are all the same. They are square corners.
- A square is a special type of rectangle with all sides the same length.
- An oblong is a rectangle with 4 sides that are not all equal.
Keywords
Rectangle - A 2D shape with 4 sides and 4 vertices that are all the same.
Square - A special type of rectangle with 4 equal sides.
Sides - The edges of a shape.
Vertices - The corners of a shape.
Straight - A line or surface with no curves.
Common misconception
Children may not see that a shape can have two different names e.g. a square is also a rectangle.
Use sorting hoops to sort rectangles and not rectangles. Then use a smaller hoop inside the 'rectangles' hoop to help identify the squares.
The concept of right angles will be taught in KS2. At this stage, they are referred to as square corners to support children's understanding of rectangles. Children should explore the idea that the 4 vertices on a rectangle are always the same.
Teacher tip
Licence
This content is © Oak National Academy Limited (2024), licensed on
Open Government Licence version 3.0
except where otherwise stated. See Oak's terms & conditions (Collection 2).Lesson video
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Starter quiz
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6 Questions
Q1.
Which shape has 4 sides?
A
B
Q2.
Which line is the same as this one?
A
C
Q3.
Who has the shortest string on their balloon?
Sam
Q4.
How many vertices does this shape have?
1
2
3
Q5.
True or false. These shapes are all the same.
True
Q6.
Which of these shapes has only 3 vertices?
A
B
Exit quiz
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6 Questions
Q1.
All of these shapes are called __________.
triangles
squares
Q2.
This shape could be called a __________ and a __________.
square
Q3.
This shape could be called a __________ and a __________.
oblong
Q4.
Which shape has 4 square corners?
B
C
Q5.
This shape is not a rectangle because __________.
it has more than 4 sides.
it has more than 4 vertices.
it has less than 4 sides.
Q6.
Which shapes are in the wrong place?
A
C
Additional material
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