Grade 2 Length
Which is longer, 9 cm or 50 mm?
9 cm
What unit do we use to measure small to medium sized objects?
centimetres/cm !
Perimeter means the distance around the __________ of a shape.
Outside!
Where two lines in an angle meet is called a ________
Vertex
Put these in order from shortest to longest
3 cm, 7 cm, 80 mm, 5 cm
3 cm, 5 cm, 7 cm, 80mm
True or false
When measuring you should always start at 1 on the ruler
FALSE, you should always start at 0
What is the perimeter of a square with sides of 2 cm?
8 cm
What kind of angle is the corner of a book or window?
Right angle or 90 degrees
A marker is 12 cm long, while an eraser is 30 mm long
which is longer?
Eraser!
When measuring with cubes, should there be gaps and overlaps, or no gaps and no overlaps?
no gaps and no overlaps!
A triangle has side lengths 5 cm, 5 cm, and 5 cm. What is the perimeter?
14 cm
What makes an angle bigger: longer arms or a wider opening?
Wider opening
What unit would you use to measure an ant?
cm, mm, or m?
To measure our classroom wall, would you use cm, mm, or m?
The perimeter of a shape is 24 cm
one side is 3 cm long.
What are the lengths of the missing sides?
Side 1: 3 cm
Side 2: 3 cm
Side 3: 9 cm
Side 4: 9 cm
Show Ms. Al Omar with your arms:
1. An angle bigger than a right angle
2. An angle smaller than a right angle
3. A right angle
wowwwwwwww niceeeeeeeeee
your finger!
To measure your desk, would you use markers, paperclips, or a metre stick?
Markers!
A rectangle has side lengths 6 cm, 2 cm, 6 cm, and 2 cm. What is the perimeter?
16 cm
A shape has four corners, and each corner is a right angle. Name one shape it could be.
2 answers are correct
rectangle or a square