Calculators & Finding Average

In regards to safety when we experiment, we should,

• wear protective clothing and not worry about wearing goggles

• wear protective clothing and protective goggles

• There is no safety rule for this.

When working with flames, we should

• keep clothes away from open flames and keep your long hair down

• keep clothes near the flames because nothing will happen and tie your long hair back

• keep clothes away from flames and tie back long hair

• This is not any kind of safety rule, therefore we do not have to follow it.

If we have any kind of spillage on the floor or a surface, we

• leave it there and someone will clean it up later

• make the teacher clean it up

• clean it up immediately and ask the teacher if assistance is needed

• step on it or wipe it away with our hands

After we´ve made mesurements, a calculator can help us

• with nothing.

• analyze our data.

• analyze our experiments.

• adding numbers into the calculator.

How do we find percent?

• multiply

• subtract

• add and divide

• divide

What do you do when you make a mistake on a calculator?

• Throw the calculator away and buy a new one.

• Use the incorrect numbers displayed.

• Press the clear entry (CE/C) to erase your mistake and start over.

• Cry!

How do you find average?

• We add and divide to find the average.

• We subtract our numbers from our data to find average.

• We only divide to find average.

• We only multiply to find average.

What part of the scientific method is finding average?

• Hypothesis

• Experiment

• Results

• Conclusion

What are the steps in finding average?

• 1. First find the of the date. Add the numbers.

  2. Write the information in your results.

• 1. First find the sum of the date. Add the numbers.

  2. Then divide the sum by the number of addends.

• 1. Multiply all of the data together.

  2. Divide the results by the numbers of addends.

When experimenting, it is okay to drink and/or eat anything that we experiment with.

• true

• false