2.
Choose any 9 of the following numbers...
4 90° 3 5
8 360° 180° 6
12 0 1 7
-Whiteboards
-Cross them out when the answer is your number
3. Pick any 9 numbers from these:
1. How many sides does a square have? 4
2. How many sides does a heptagon have? 7
3. Angles on a straight line add up to 180
4. A full circle is a revolution angle, which means there are how many
degrees in a full circle? 360
5. How many sides does an octagon have? 8
6. How many sides does a triangle have? 3
7. How many sides does a pentagon have? 5
8. A square and a rectangle have 4 angles which add up to 360degrees.
What is the size of one of the angles in a square and rectangle? 90
9. How many edges does a cube have? 12
10. How many edges does a sphere have? 0
11. How many faces does a sphere have? 1
12. How many faces does a cube have? 6
Bingo!
4.
Recap…
Define a square
4 equal sides
All angles 90°
Total angles 360°
Define a rectangle
4 sides, opposite sides equal
All angles 90°
Total angles 360°
5.
Investigate whether :
A square is a rectangle
A rectangle is a square
• Discuss with the person next to you and come up with
a convincing argument to present to the class.
• Consider definitions of both the shapes and properties
when coming to conclusions.
In pairs..
6. • All girls are people, but not all people are girls.
• All cars are machines, but not all machines are cars.
• All lollipops are candies, but not all candies are lollipops.
Puppies, lollipops, girls and cars are all examples of specific types of a more
general category, like dogs, candy, people and machines. All the specific
examples, puppies, lollipops, girls and cars, have more characteristics that
make them more specific.
A rectangle is a square when both pairs of opposite sides are the same
length. This means that a square is a specialized case of the rectangle and is
indeed a rectangle.
7.
Learning objective:
TBAT define and identify parallel and perpendicular
lines.
Parallel and Perpendicular lines
Key words: Parallel, Perpendicular, Right angle, Equal Distance
03/02/2023
8.
Two lines on a surface that never meet.
They are always the same distance apart.
What are parallel lines?
Key words: Parallel, Perpendicular, Right angle, Equal Distance
9. What are Parallel Lines?
They are two lines on a surface that never meet. They are
always the same distance apart.
10.
What are perpendicular lines?
This is when a line crosses another line at exactly 90°
Key words: Parallel, Perpendicular, Right angle, Equal Distance
11. What are Perpendicular Lines?
This is when a line crosses another at exactly 90 degrees.
A tip: always make sure it forms a upside T or capital L
exactly. Draw over the shape and check.
90 degrees!
12.
Perpendicular
lines
Yellow lines
are parallel
because they
never meet
and are
always the
same distance
apart.
Red lines are
perpendicular to each
other because they
form a right angle
(90degrees).
NOTE: Any two lines
that meet are not
perpendicular. They
need to form a right
angle.
13.
Complete the worksheet
Task 1
Key words: Parallel, Perpendicular, Right angle, Equal Distance
14.
Find the parallel and perpendicular lines in the
following pictures.
Task 2