Problem Solving September 10, 2009. Objectives Content Objectives: Students will review the order of operations and apply it. Language Objectives: Students.

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Presentation transcript:

Problem Solving September 10, 2009

Objectives Content Objectives: Students will review the order of operations and apply it. Language Objectives: Students will discuss and present their problem solving strategies. Students will discuss learning strategies.

What is the average (arithmetic mean) of 8, 7, 7, 5, 3, 2, and 2?

Ben is making wooden toys for the next arts and crafts sale. Each toy costs Ben $1.80 to make. If he sells the toys for $3.00 each, how many will he have to sell to make a profit of exactly $36.00 ?

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Phillip charged $400 worth of goods on his credit card. On his first bill, he was not charged any interest, and he made a payment of $20. He then charged another $18 worth of goods. On his second bill a month later, he was charged 2% interest on his entire unpaid balance. How much interest was Phillip charged on his second bill?

What is problem solving? Page 1 CONCEPTUAL UNDERSTANDING Interpreting the concepts of the task and translating them into mathematics PROCESSES & STRATEGIES Choosing strategies that can work, and then carrying out the strategies chosen

What is problem solving? Page 2 VERIFICATION In addition to solving the task, identifiable evidence of a second look at the concepts/ strategies/calculations to defend a solution COMMUNICATION Using pictures, symbols, and/or vocabulary to convey the path toward the identified solution ACCURACY

Learning Strategies Find a partner. Decide who will be partner A and who will be partner B. Partner A will share learning strategies that have worked, then I will cue you and you can switch.

Learning Strategies Discussion

The Order of Operations P E M D A S

Practice (2 + 3) + 2 ● 3 2

Did we meet our objectives? Content Objectives: Students will review the order of operations and apply it. Language Objectives: Students will discuss and present their problem solving strategies. Students will discuss learning strategies.