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Pre-Algebra Room 424 Ms. Josie

Please sign in next to your name on the sheet by the door.

I have pencils, pens, paper, if you need it.

I will be available in my room from 12:00 - 12:30 for tutoring on Mondays and Wednesdays if you ever want extra help. (PLEASE LET ME KNOW AHEAD OF TIME)

The day’s lesson and the homework will be posted to my website by the end of each day.

www.mrsmillersmathtutoring.com

Always feel free to email me with any questions or concerns.

jmiller1@camdencc.edu

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Warm Up: You have 5 minutes to work on these problems. Then, we will go over them.

Turn in Take Home Quiz from Thursday

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Warm Up: You have 5 minutes to work on these problems. Then, we will go over them.

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Use your knowledge of perfect squares to find the approximate value of each square root.

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10. Explain: Describe how your knowledge of perfect squares could help you estimate the square root of 90.

Two perfect squares near 90 and 100 and 81. So, the square root of 90 should be between 9 and 10.

# 8 & 10 HOMEWORK

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Evaluate each expression.

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# 4 & 5 HOMEWORK

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Read the situation below and write an expression that could be used to solve it.

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Three families are going to play. They decide to split the cost of tickets evenly. The families need to buy a 7 tickets for children at $9 each ad 6 tickets for adults at $12 each. How much does each family owe?

Analyze. Is the order of operations important in solving problem 12? Try performing the operations out of order to see if the answer is affected.

Yes. you will get incorrect answers if you add before you multiply.

# 12 & 13 HOMEWORK

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Using a Calculator

Most tests, including the GED Math Test, allow you to use a scientific calculator.

A calculator is helpful only if you know how to use it.

All scientific calculators have the same abilities, but the keys might be in different places.

Before you take any test, make sure you practice with the calculator you will be allowed to use.

In this lesson, you will learn how to evaluate powers and roots on a scientific calculator and how to work with grouping symbols.

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Note: Sometimes you need to press the arrow key to move the cursor.

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To work with roots, you need the second functions above the exponent keys.

To access a second function, press the button marked 2^nd in the upper left corner of most calculators.

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Notice that the calculator displays the calculation as you would write it on paper.

Always check the display to make sure you have entered the calculation correctly.

If you make a mistake, always clear before starting over.

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Scientific calculators are programmed to follow the order of operations.

You can enter an expression exactly as it is written to find its value.

If grouping symbols are needed, use the parentheses keys.

You can also enter an expression as a fraction.

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