What does sustainable mean?
Today I can explain what sustainability means and why renewable does not mean limitless.
A Look back3 min
- 1.
Which direction is missing on this compass?
NSEW - 2.
What symbol is in square C2?
treehousepondchurch - 3.
Which month had the most rain?
JanFebMarApr
B Watch me, then you4 min
A village wood has trees. Each year 30 trees are cut down and 20 new trees grow back. Is the wood sustainable?

Cut down: 30. Grow back: 20.
30 is more than 20, so the wood is getting smaller each year.
Not sustainable, because trees are used faster than they grow back.
- 1.
In a made-up pond, 40 fish are caught each year and 25 are born. Is the fishing sustainable? Yes or no.
YesNo
C Your turn7 min
Each bar chart shows trees cut down and trees that grow back in a made-up wood. Is the wood sustainable? Yes or no.
- 1.
10 trees are cut and 20 grow back. Is the wood sustainable? Yes or no.
YesNo - 2.
25 trees are cut and 20 grow back. Is the wood sustainable? Yes or no.
YesNo - 3.
20 trees are cut and 20 grow back. Is the wood sustainable? Yes or no.
YesNo - 4.
40 trees are cut and 30 grow back. Is the wood sustainable? Yes or no.
YesNo
Say it out loud: Which bar is taller in each chart? What does that tell you about whether the wood can keep going?
D Spot the mistake3 min

- 1.
Write one sentence saying what is wrong with Ali’s idea.
E Think deeper3 min

- 1.
Make up one choice a family could make at home, such as what to eat or how to travel. Say whether it helps or harms the future, and why, in two sentences.
How did it feel?
Which part of today was easiest? Which part was hardest? Tell your grown-up one thing you now know about sustainable.