Here are some equations that are true when x=3 and y=4 but there is at least one mistake. Click on the ticks and crosses to show this piece of work correctly marked.
x + y = 7 
x  y = 1 
y  x = 1 
2x + 3y = 18 
5x  2y = 7 
4y  x = 13 
xy  10 = 2 
180  2x + y = 186 
20x  3xy = 33 
x^{2} + y = 13 
10x  y^{2} = 14 
y^{2}  x^{2} = 7 
x^{2}y + 13 = 49 
x^{2}y^{2}  2x = 152 
x^{2}y^{3} = 576 
x! + y = 10 
5(x + y) = 35 
3y รท x = 22 
xy
2
= 6

84
xy
= 7

15y
5x
= y



Transum.orgThis web site contains hundreds of free mathematical activities for teachers and students. Click here to go to the main page which links to all of the resources available. Please contact us if you have any suggestions or questions. 

More Activities: 
Comment recorded on the 25 June 'Starter of the Day' page by Inger.kisby@herts and essex.herts.sch.uk, : "We all love your starters. It is so good to have such a collection. We use them for all age groups and abilities. Have particularly enjoyed KIM's game, as we have not used that for Mathematics before. Keep up the good work and thank you very much Comment recorded on the 23 September 'Starter of the Day' page by Judy, Chatsmore CHS: "This triangle starter is excellent. I have used it with all of my ks3 and ks4 classes and they are all totally focused when counting the triangles." 


Numeracy"Numeracy is a proficiency which is developed mainly in Mathematics but also in other subjects. It is more than an ability to do basic arithmetic. It involves developing confidence and competence with numbers and measures. It requires understanding of the number system, a repertoire of mathematical techniques, and an inclination and ability to solve quantitative or spatial problems in a range of contexts. Numeracy also demands understanding of the ways in which data are gathered by counting and measuring, and presented in graphs, diagrams, charts and tables." Secondary National Strategy, Mathematics at key stage 3 

Go MathsLearning and understanding Mathematics, at every level, requires learner engagement. Mathematics is not a spectator sport. Sometimes traditional teaching fails to actively involve students. One way to address the problem is through the use of interactive activities and this web site provides many of those. Click here for more activities designed for students in upper Secondary/High school. 

Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for those learning Mathematics anywhere in the world. Click here to enter your comments. 