Making Maths a Problem

In the sports shed there were 84 boxing gloves and 52 basketballs. The teacher needed to put them into equal groups, the groups cannot be mixed. What are three groups that can be made ?                                                                                                                                                                                                                                                                               Yesterday in maths we made our own maths problems. Making a maths problems with multiple answers is much harder than it looks because you need to find all of the answers to know if the person who solves the problem is right. This problem is a division problem so some numbers don’t work well together and might only have one or two answers so you also need to know if your numbers work well together.

WIN_20150618_125453To find out all the answers I got one number and found all the possible groups. Then once I had found all the groups I chose another number and did the same thing the answers that were the same were all the answers for that set of numbers. To find the groups for the separate numbers I used doubling halving and building up strategies.

Next maths session we are all going to chose a different problem and try to solve it.

Rube Goldberg Machines

Over the past semester everyone in year 5 has been building Rube Goldberg Machines. A Rube Goldberg Machine is a very complicated contraption to complete a simple task, like turning on a light or cooking toast ours flicked a lolly into your hand. Building our Rube Goldberg Machines took lots of time and hard work so today we had a chance to show them off. When we showed off our machine we explained who Rube Goldberg was and how our machine worked and then tried it out, our machine only worked once but luckily lots of people were watching. The restrictions to building our machines were, it had to have a number of simple machines and elements equal to the number of people in the group and it had to be confined in the size of one large box. Our group had four people so that meant four elements and four simple machines. Our simple machines were, two inclined planes, three levers, a wedge and a fulcrum. From building our Rube Goldberg Machines I learnt that if        something doesn’t work the first time you should keep on trying. IMG_4652

Lego Excursion

Yesterday all of year 5 went on an excursion to Lego Educational Center. There were 3 activities that we did. One of  activities that my group did was all about renewable energy or green energy. We got in pairs and built a ferris wheel. There were lots of different ways to generate electricity to make the ferris wheel spin. One way was to spin a handle connected to the motor. The second way was to use wind energy, there was a normal fan and a Lego fan the normal fan spun around ans the Lego fan generated electricity. The final way was light energy. There were solar panels that connected to the motor, then we put a lamp onto of the solar panel to generate the electricity. To transfer the electricity there was little metal bits on the leads and motors. Electricity doesn’t ever disappear it just gets transformed or transferred into different types of energy. Like when we spun the handle it used our energy and gave it to the ferris wheel. IMG_1679

Year 5 Allegro Concert

Over the semester we all have been playing an instrument, I chose trombone. On a trombone to make different noises there is a slide. The air travels through the tube and the longer you make the tube it makes a different noise, you can also make different noises by tightening your lips. Yesterday we all went to the Keith Humble Centre for a whole day to share everything we have learnt. Each instrument played one or two short pieces each to our friends and family. The trombone group played two pieces they were called Slip Sliding and Tango Delae. At the end all the instruments played a song together called Go Go Allegro. I had a great time. IMG_0108