2D Shapes
What is the name of a shape that has 3 sides?
A triangle.
About how wide is a pinky finger?
1 cm
Count by 2s from 2 to 20.
2, 4, 6, 8, 10, 12, 14, 16, 18, 20
What are the next three numbers in this pattern:
4, 8, 12, ...
(4, 8, 12) 16, 20, 24
If I know 5 + 5 = 10, what subtraction fact do I know?
I know 10 - 5 = 5.
A shape that has four sides, two long and two short, and all right angles is called...?
About how long could a book be?
30 centimeters or 30 meters
30 centimeters (one ruler length)
Count by 5s from 5 to 60.
5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60.
What are the next three numbers in this pattern:
100, 90, 80, ...
(100, 90, 80...) 70, 60, 50
If I know 6 + 4 = 10, I know 4 + 6 = 10. What other facts do I know?
10 - 4 = 6
10 - 6 = 4
A hexagon.
Would I use centimeters or meters to measure the length of a car?
meters
Count by 25s from 0 to 200.
25, 50, 75, 100, 125, 150, 175, 200.
What is the pattern rule for this pattern:
7, 11, 15, 19, 23, 27
Pattern Rule: +4
If I know 4 + 8 = 12, I know 8 + 4 = 12. What other facts do I know?
12 - 8 = 4
12 - 4 = 8
What is the name of a shape that has four equal sides and no right angles?
A rhombus.
What length of time would I use to measure how long it takes someone to run 100 meters?
seconds
Count by 20s from 60 to 140.
60, 80, 100, 120, 140.
What is the pattern rule for this pattern:
86, 77, 68, 59 ....
Pattern Rule: - 9
If I know 15 + 6 = 21, what other math facts do I know? (There are 3.)
6 + 15 = 21
21 - 15 = 6
21 - 6 = 15
What is the name of a shape that has two pairs of parallel sides (one long pair and one short pair), but no right angles?
A parallelogram.
What length of time would I use to measure how long an average person can hold their breath under water?
seconds
Count by 10s from 135 to 195.
135, 145, 155, 165, 175, 185, 195.
What are the next two numbers in this pattern AND what is the pattern rule?:
2, 4, 8, 16 ...
(2, 4, 8, 16) ... 32, 64
Pattern Rule: x2
If I know 35 - 7 = 28, what other facts do I know?
28 + 7 = 35
7 + 28 = 35
35 - 28 = 7