After last weeks introduction to percentages we have begun to explore them in a little more depth.
If you want to get better at calculating percentages a little quicker, click on the image below and play number invaders.
After last weeks introduction to percentages we have begun to explore them in a little more depth. If you want to get better at calculating percentages a little quicker, click on the image below and play number invaders.
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This problem is from the nrich website. If you need a little help, this website is quite useful. Are you a smart shopper? In my local town there are three supermarkets: Gary's Groceries, Fiona's Foods and Paul's Provisions. This week they have each got a special deal on some products. At Gary's Groceries, they are selling items at discount prices. At Fiona's Foods, you can buy items which have a certain amount free. At Paul's Provisions, there are some "buy one get one free" deals. Have a look: If you shopped at Gary's Groceries, how much would you actually pay for each item? So how much money have you saved on each?
Here is your shopping list:
If you could buy the items from different shops, how would you do it to spend the least amount of money? Apart from the cost, can you think of any other advantages or disadvantages with buying these items at just one shop? You have got £10.70 to spend on a party meal for you and nine friends. Here's your shopping list:
How many different ways are there? Which shop offers best value for money on each item? What sorts of things do you need to take into account to answer this? Is the "buy one get one free" deal at Paul's Provisions the same as if they had 50% off? Try out these fraction games. Comment on the 2 that you enjoyed the most and explain how they help you gain a better understanding of fractions. Remember, if a game is too easy then you aren't really learning anything from it so choose carefully.
Check out these website to learn more about fractions:
Fraction games online: http://interactivesites.weebly.com/fractions.html Fraction magic squares: http://www.learn-with-math-games.com/printable-fraction-worksheets.html http://www.worksheetworks.com/puzzles/magic-squares/fraction.html They pick a domino in turn.Erik can only choose dominoes which have an odd number of spots in total.
Sanjay chooses the dominoes which have an even number of spots. How many will they each be able to pick up? Is this fair? Why?Now they change the rules. They lay out the dominoes again. Erik can only choose dominoes where the total number of dots is a multiple of 3. Sanjay chooses the dominoes where the total number of dots is not a multiple of 3. Who is able to pick up the most dominoes now? Is this fair? Explain your answer.
If you click on the image below it will take you to the Grade 4 Netvibes Math page. With a partner, I would like you to explore some of the links to fraction activities. You and your partner need to post 2 recommendations to the rest of the class.
Your recommendation needs to include the name of the website/game and how it can improve your understanding of fractions. Can you help the police locate the robber?
The robber is hiding in a modern city, where the roads are all at right angles and equally spaced. Imagine the grid lines represent roads. The robber is hiding at a crossroads. Input coordinates to help the police search and find the robber with the fewest guesses. The interactivity gives you the shortest distance you'd have to travel (along the roads) to reach the robber. Can you find a reliable strategy for choosing coordinates that will locate the robber in the minimum number of guesses? Click on the image below to play. |