This is an IXL activity but in the maths group I am in, we are learning about subtracting and adding decimals. For example, the problem above is 3.9+9.7. You can use the algorithm strategy for adding decimals. .9 and .7 are in the tenths value. Add them up, carry the 1 in .16 to the ones place. 1+3+9 is 13. So our answer is 13.6.
For this measurement activity we used a long string to measure the circumfrence. The circumference is the outer part of the circle that is formed with an infinite amount of dots. Then we measured the diameter, which is a line that crosses through the circle. Both measurements of the circumference and diameter were divided together and most of them were just over the number 3 as a value. The result is called pi. The objects we received were of different sizes and cylinder shaped (from glue stick to bucket).
WALT: (we are learning to) Add and subtract fractions with different denominators. For example 2/8 + 7/24. Find the factors of the denominators. 8, 16, 24. 24. There are two 24s so we transform them into our new denominators. ?/24 + ?/24. For the first one, it was once 2/8. The question mark in 8x?=24 is the number you multiply 2/8 by. 3 x 8=24 and 2 x 3=6. It is now 6/24. For the fraction that was 7/24, the question mark in 24 x ?=24 would be the answer. Which is the number 1. The fraction 7/24 remains the same because it is multiplied by one. 6/24 + 7/24 would be 13/24 because you should leave the denominators alone.
For subtracting fractions we do the same thing but subtract the numerators at the end. E.g, 2/8-1/8 would be 1/8.
This is a question with lots of probabilities of a person bringing a pen, a pencil, and a highlighter and could bring any type of colour pen, pencil, or highlighter. The list above shows all the 24 possibilities. Although a tree diagram would have been more clearer, the list still shows it well.
This is a maths strategy that requires all of your times tables to be known. For example, 4 x 243. Place value is also needed so you split 243 into 200+40+3. Then you make 4 groups of 200+40+3 because you are multiplying by that number. 4 x 3= 12, so you cross out the 3 in your groups. 4 x 40 is 160, so cross out all the 40s. 4 x 200 is 800, so cross out the 200s. Add 12+160+800 together, and you get 972. 4 x 243= 972.
Greedy pig is a game of chance. You keep rolling a die to add to the number 50. If you roll one, your score or sum will revert back to zero. You will be a ‘greedy pig’ if that happens. If the other numbers are rolled, they will only be added towards your score. you keep rolling a die to add to the number 50. This is one of the games I played today, and I successfully reached the score of 50.
A stem and leaf plot is a different type of graph. The stem part symbolises the tens place while the leaf is the ones place. We will look at the row that says ‘2 0 5’. This does not mean it is showing the number 205, it is showing 20 and 25. The stem part with the 2 on it is like a preset for a tens place so numbers from 0-9 can be placed as a ones digit. To read a stem and leaf plot you read the number on the stem and one number on the leaf. Two five. ‘Two five” is basically twenty-five.
Using the power of Google spreadsheets, I created a chart for an activity about surveying. It was about a principal that surveyed year 8 kids from another school to survey them about their options they would like to take next year. All of the year 8s could choose two options, so the total count is doubled.
This is the IXL award grid. It consists of 72 squares (8×9). As you can see it is almost full. The awards with the question marks are the only ones I can discover, which are mastering (skill amount) skills and answering question numbers in the thousands, E.g 4000 questions. When an award says ‘complete any row’ or ‘complete any column’, it means you need to complete an award row/column on the grid.
This IXL math is found in Year 8, U.7. It is about a missing angle in triangles and quadrilaterals (4 sided shapes). To figure out the missing angle you add all the current angles together. Example- 66+142+43=251. The sum of all the angle numbers must be 360 degrees. That only applies to a quadrilateral. For a triangle, the sum must be 180 degrees. Then you subtract the sum of all the current numbers by 360 or 180, depending on the shape. Example- 360-251-109.