4913mm^{3}  6859mm^{3}  29791mm^{3}  68921mm^{3} 
35.937cm^{3}  9.261cm^{3}  12.167cm^{3}  15.625cm^{3} 
Topics: Starter  Roots  Xmas
How did you use this starter? Can you suggest
how teachers could present or develop this resource? Do you have any comments? It is always useful to receive
feedback and helps make this free resource even more useful for Maths teachers anywhere in the world.
Click here to enter your comments.
If you don't have the time to provide feedback we'd really appreciate it if you could give this page a score! We are constantly improving and adding to these starters so it would be really helpful to know which ones are most useful. Simply click on a button below:
This starter has scored a mean of 3.0 out of 5 based on 28 votes.
Previous Day  This starter is for 26 December  Next Day
17mm  19mm  31mm  41mm 
33mm  21mm  23mm  25mm 
Note to teacher:
Doing this activity once with a class helps students develop strategies. It is
only when they do this activity a second time that they will have the
opportunity to practise those strategies. That is when the learning is
consolidated. Click the button above to regenerate another version of this
starter from random numbers.
Teacher, do your students have
access to computers? 

Here is the URL for a concise version of this page without comments or answers.
Transum.org/go/?Start=December26
Here is the URL which will take them to a fun Christmas activity.
Does your calculator have a cube root key?
Launch the calculator on your computer.
There is a way of calculating the "cube root" on a calculator.
Can anyone in your class work it out?
Interesting fact for the Teacher:
There is a simple method to compute the cube roots using a nonscientific calculator, which requires only the multiplication and square root buttons. No memory is required. The following method is used:
This process is continued until the number does not change when the multiplication button is pressed, since the repeated square root gives 1 (this means that the solution has been determined to as many significant digits as the calculator can handle). Then, press the square root button one last time. At this point an approximation of the cube root of the original number will be shown in the display.
A full explanation of why this works can be found on Wikipedia, the free online encyclopedia.
On the Windows calculator, switch to scientific mode, type in your number, the INV x^3 to get the cube root.