When Seagull Stole the Sun
K- 7 Math Activities
The Story
,
Making tens
Raven gathered 3 x̌ixwe �on his first trip, �but he wants 10.
How many more does �he need?
7 more!
Making tens
Raven gathered 2 x̌ixwe �on his first trip, �but he wants 10.
How many more does �he need?
8 more!
Making tens
Raven gathered 7 x̌ixwe �on his first trip, �but he wants 10.
How many more does �he need?
3 more!
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Raven’s Many Sea Urchins!
trips | sea urchins |
1 | 3 |
2 | 6 |
3 | 9 |
4 | 12 |
10 | 30 |
+3
+3
+3
x3
3 per trip
(Rule)
How many trips did it take raven to gather 30
sea urchins?
How many sea urchins can Raven gather in 10 trips?
3 x trips
3 x m
3t
trips
trips
hours | blocks |
1 | 7 |
2 | 13 |
3 | 19 |
4 | ? |
h | |
+6
+6
+6
6h...?
+1
x 6
Expression (Rule)
25
A Brightening Sun
7
13
19
constant
What would it look like at the point of release (hour 0)?
Highest Output
Wins!!
Practice
Build your own Sun
It’s growing by 4 so it’s 4h
3 stay the same, so it’s plus 3
4h + 3
hour 0
hour 1
hour 2
Other Lessons with Linear Relations:
1 week
2 weeks
week | blocks |
1 | 5 |
2 | 8 |
3 | 11 |
w | |
+3
+3
3w + 2
x 3
3 weeks
Weeks (x) | Size� (y) |
1 | 5 |
2 | 8 |
3 | 11 |
x | |
3x + 2
weeks
Size (# of Blocks)
y intercept
slope
y = 3x + 2
3x + 3
weeks
# of Blocks
y intercept
3x+3
3x+2
y=2x +2
slope
3x +2
y intercept
slope
2x+2
1
4
0
4
1
11
2
18
3
25
7
4
2
1
-