Comparing investments: there are six investments. Find all the representations (description, formula, graph and table of values) of a single investment. After this, work out which statement fits with which investment.
The teacher leads a very short discussion about the different types of investments, reminding the learners about simple and compound interest. He or […]
This lesson is about different representations of number: percentages, decimals and fractions. It particularly emphasises that percentage and decimal increases and decreases are not mirrored whereas fraction increases and decreases are.
After a short introduction, during which the teacher asks students questions about amounts increasing or decreasing by 50%, 100% or 200%, […]
If an object depreciates in value by 10% each year how long will it take until only half of the original value remains?
Why aren’t these two answers the same?
Is there a rate, used […]
The area that they cover doubles in size every day.
After 17 days the whole lake is covered with water lilies.
How long did it take them to cover half the lake?