Interpreting Positive and Negative Values

The video tutorial explores the use of negative numbers to understand various contexts, such as financial transactions and inventory management. It includes activities involving a concession stand and a vending machine, where students learn to interpret positive and negative numbers in tables. The lesson emphasizes noticing and wondering about data, encouraging critical thinking and questioning assumptions.

What is the purpose of the 'Notice and Wonder' activity?

• To memorize facts

• To encourage critical thinking

• To solve complex equations

• To practice writing skills

What does a positive number in the context of making and spending money mean?

• Money was borrowed

• No change in money

• Loss of money

• Gain of money

In the concession stand scenario, what does a negative number indicate?

• Items were restocked

• Items were sold

• Items were returned

• Items were damaged

How can we interpret a positive number in the concession stand records?

• Items were lost

• Items were sold

• Items were restocked

• Items were donated

In the concession stand, which item did the manager spend the most money on?

• Pizza

• French fries

• Hot dogs

• Donuts

What does a zero value in the vending machine data signify?

• New items added

• Machine malfunction

• All items sold out

• No change in inventory

In the vending machine scenario, what does a positive number mean?

• Bottles were restocked

• Bottles were broken

• Bottles were returned

• Bottles were sold

What does a negative number in the vending machine data indicate?

• Bottles were replaced

• Bottles were sold

• Bottles were restocked

• Bottles were added

What was the greatest change in the number of bottles in the vending machine?

• 12 bottles sold

• 12 bottles added

• 24 bottles sold

• 24 bottles added

If the vending machine must be empty to be serviced, what number should appear in the data?

• Zero

• Positive 40

• Negative 40

• Positive 20