Hey there everybody! Our first topic has come to an end and tomorrow we will quiz on what we have learned. Be sure you know the following vocabulary: bar graph, pictograph, average, digit, quotient, product, sum, and difference. Here are some resources that you can use to study. Remember, the Topic 1 Review is assigned as homework!
Work through the activities in the Blendspace for extra practice:
In this unit, we will build upon the knowledge you gained about fractions from third and fourth grade. In grade 5, the investigations present more real world contexts for fractions, such as purchasing building supplies, comparing packages with different numbers of items, and adjusting amounts of ingredients in recipes. You will use manipulatives and diagrams to help you develop mental pictures of operations with fractions as you build new skills.
Here are some vocabulary words we will be using in math class: common denominator, equivalent, improper fraction, mixed number, and simplest form. Below are some tools to help us get started:
Division is splitting a larger amount into equal groups or finding out how many are in each group. In this topic, we identified factors, common factors, and found the greatest common factor of whole numbers. We explored rules of divisibility such as, "A number is divisible by four when the number formed by the last two digits of that number is divisible by four." For example, 1312 is divisible by four because the last two digits form the number 12 and that is divisible by 4 (1312 / 4 = 328); whereas 1319 is not because 19 is not divisible by 4 (1319 / 4 = 329.75). For a complete list of divisibility rules, check out this site here. Or, you could always check out this song and tutorial:Study Jams! Divide and Conquer - Rules of Divisibility.
We also learned some neat ways to divide by ten. We explored related division problems like 450 divided by 5 and 450 divided by 50 and found patterns to help us divide by multiples of 10. You can practice your multiples by playing Ghost Blasters. Then, we moved into calculating the mean and finding the range. Remember! Range is the difference between the largest and smallest number of a data set, and average is found by computing the sum of a set of numbers and dividing by the number of addends! Throughout, we used the long division algorithm to solve division problems. Check out all the stuff you can use on the web for practicing division under the Topic 3 Resources.
Becoming a good divider, if that is a title, takes practice! So, here is a Blendspace review that you can use to practice all the skills we have learned in Topic 3!
Topic 1 is wrapping up! We learned about how numbers and mathematics is used in real life, how to read and interpret graphs and data, and how to use basic operations to solve math problems. Check out this cool video about the world's population which helped us think about big numbers:
We also looked at the MegaPenny Project. Check it out if you want to see what a trillion pennies looks like! To review, we used a Blendspace that combined all of our lessons. Here it is below.
Click on the button below to learn more about the grade five math curriculum.