yesterday we did some thing on good instructions and today we had to brain storm what good instructions were.

Yesterday we did a study on paper planes we did some research on paper planes. Then we made some and tested them here are the results. Also on the right there are the mean, median, mode and range for all of our scores.

This is how you work them out:

MEAN:
You add all the number together and divide them by how many number there are e.g 5+7=12/2=6
MEDIAN:
You put the number in order and find the middle one e.g 2, 4, 6, 8,9 median =6
MODE:
You find the most common number e.g 5, 3, 7, 5, 7, 9, 8, 7 mode =7
RANGE:
You minus the smallest number from the largest e.g 5, 8, 11, 6, 3, 2  11-2=9

Yesterday we did a science experiment were we made a lava lamp and we changed one thing about it and answer a question we made up. My groups question was how many fizzy tablets did it take to over flow the test tube because when you put the tablet in the top starts to foam. First we put the normal amount you would put in a test tube which was a quarter of a tablet and that didn't over flow. Then we put in half a table and it still didn't over flow but we ran out of time in the lab and we had to pack up. But i think it would take one and a quarter tablets to over flow the test tube.