Enyoy doing mathematics with every bus number you see.
14
14
ChallengeEach time a bus comes into view write down the following about the bus number: Double it, halve it, square it The challenge is to do all of this before the next bus appears! 
GamePlayer 1 doubles the bus number. Whoever gets the largest total wins. Play the game with a friend. 
DrillEach time a bus comes into view the teacher gives an instruction such as: "Write down the fifth multiple of this bus number." 
AddictiveKeep a running total of the bus numbers in your head! Stand up as soon as the total exceeds 100 or is equal to a square number. Do it in silence or chant the totals together. 
Tweet about this starter  Share 
Topics: Starter  Arithmetic  Factors  Mental Methods  Mixed  Number
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 2.9 out of 5 based on 130 votes.
Previous Day  This starter is for 28 April  Next Day
Bus Number 
Double  Factors  Sum of Factors  Winner 
1  2  1  1  Player 1 
2  4  1 2  3  Player 1 
3  6  1 3  4  Player 1 
4  8  1 2 4  7  Player 1 
5  10  1 5  6  Player 1 
6  12  1 2 3 6  12  Draw 
7  14  1 7  8  Player 1 
8  16  1 2 4 8  15  Player 1 
9  18  1 3 9  13  Player 1 
10  20  1 2 5 10  18  Player 1 
11  22  1 11  12  Player 1 
12  24  1 2 3 4 6 12  28  Player 2 
13  26  1 13  14  Player 1 
14  28  1 2 7 14  24  Player 1 
15  30  1 3 5 15  24  Player 1 
16  32  1 2 4 8 16  31  Player 1 
17  34  1 17  18  Player 1 
18  36  1 2 3 6 9 18  39  Player 2 
19  38  1 19  20  Player 1 
20  40  1 2 4 5 10 20  42  Player 2 
21  42  1 3 7 21  32  Player 1 
22  44  1 2 11 22  36  Player 1 
23  46  1 23  24  Player 1 
24  48  1 2 3 4 6 8 12 24  60  Player 2 
25  50  1 5 25  31  Player 1 
It is better to be Player 1! It is much easier to double a number than work out the factors and add them up and as you can see Player 1 is more likely to win.
Player 2 will only win when the bus number is an "abundant number". What is the next abundant number after 24?
Imagine you are the driver of a bus that begins its route with twelve passengers.
At the first stop one person gets off the bus and five people get on.
At the second stop two people get off the bus and seven people get on.
At the third stop nine people get off the bus and six people get on.
What is the name of the bus driver?
Your access to the majority of the Transum resources continues to be free but you can help support the continued growth of the website by doing your Amazon shopping using the links on this page. Below is an Amazon search box and some items chosen and recommended by Transum Mathematics to get you started.
Have you read Craig's book yet?Craig Barton must surely be the voice of Mathematics teachers in the UK. His wonderful podcasts interviewing the industry experts have culminated in this wonderful book. As Craig says: "I genuinely believe I have never taught mathematics better, and my students have never learned more. I just wish I had known all of this twelve years ago..." more... "How I wish I’d taught maths' is an extraordinary and important book. Part guide to research, part memoir, part survival handbook, it’s a wonderfully accessible guide to the latest research on teaching mathematics, presented in a disarmingly honest and readable way. I know of no other book that presents as much usable research evidence on the dos and don’ts of mathematics teaching in such a clear and practical way. No matter how long you have been doing it, if you teach mathematics—from primary school to university—this book is for you." Dylan Wiliam, Emeritus Professor of Educational Assessment, UCL. 
Casio Classwiz CalculatorThere is currently a lot of talk about this new calculator being the best in its price range for use in the Maths classroom. The new ClassWiz features a highresolution display making it easier to view numerical formulas and symbols but it isn't a graphical calculator as such (it has the capacity to draw graphs on your smart phone or tablet, via a scannable QR code and an app). As well as basic spreadsheet mode and an equation solving feature you also get the ability to solve quadratic, cubic or quartic polynomial inequalities and the answer is given just as it should be written down, using the correct inequality symbols! This calculator has a highperformance processor and twice the memory of previous models ensuring speedy operation and superior computational power.more... 
Teacher, do your students have
access to computers? 

Here a concise URL for a version of this page without the comments.
Here is the URL which will take them to a student activity involving factors.
Transum.org/go/?to=satisfaction