## Understanding Exponents

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## Frog Research and Paper for Friday, 12-15-17

Understanding Frogs and their Environments

Defining Question: How do frogs survive?

Do some research relating to the current decline in the population of frogs around the world. Be prepared to write a short paper on the information you gather. Go to the website below.

• Research the following for 1 species of frog.
• Frog’s name (type of frog)
• Location the frog lives

Find out what adaptations or characteristics the frog has to help it survive in the environment in which it lives. How do the adaptations help the frog survive.

The product you will produce is an approximately one-page paper that addresses the bullet points above. This is due at the end of class.

## Links to interactive periodic tables

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## Rules to Add and Subtract By

Rules for Adding and Subtracting Positive and Negative Values

1. When we subtract a negative number we simply add the second number. Ex: 3- (-6) becomes 3 + 6 = 9
2. When adding, if the signs are the same, we add the numbers and keep the sign. Ex: -7 + -8 = – 15
3. When we subtract a positive, we can modify the problem so that we add a negative. -2 -5 becomes -2 + -5. Then we use rule number 2. Ex: -2 + -5 = -7
4. When we are adding and the signs are different, we find the difference of the two numbers and keep the sign of the number with the greatest absolute value. Ex: -8 + 10. First we find the difference 10-8 =2. The answer is positive because 10 has a greater absolute value. The absolute value is the distance a number is away from zero on the number line.

## Homework 10-2-17

3rd math: Pages 35-36 from your math book due Tuesday

4th Science: Tennis ball experiment write up, through step 3, is due on Tuesday.

5th: Page 33 and 34 for turn in on Tuesday.

6th: Pages 35-36 from your math book due Tuesday.

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