Minds On
Singing practice
A singer has been asked to perform at a concert. To prepare for their performance, they would like to practice with a karaoke machine.
The singer finds a great karaoke machine at a music store.
The karaoke machine costs $126.
The singer has $195.
Before deciding whether they will buy this karaoke machine, the singer wants to find out how much change they will get back from their $195.
Estimate how much change will the singer receive back.
Action
Making change
The singer decides to buy the karaoke machine from the music store. Remember, the machine costs $126 and the singer has $195 to spend.
- What is the actual amount of change the singer will receive?
- Show how you determined the estimate and the actual change.
Consolidation
Independent practice
Part 1
Once the singer has their karaoke machine, they can buy different music to practice with.
- Music #1 costs $5
- Music #2 costs $10
- Music #3 costs $20
If the singer bought the karaoke machine for $126 with their $195, will they still have enough money to buy some music? Explain your thinking.
Part 2
If the singer buys one of each type of music, how much money will they spend?
Estimate the change the singer will receive if they buy one of each type of music. Remember to include the money spent on the karaoke machine ($126). Explain your thinking.
What is the actual amount of change they will have after they buy the music? Explain your thinking.
What is the most amount of music they can buy with their change? Explain your thinking.
Reflection
How do you feel about what you have learned in this activity? Which of the next four sentences best matches how you are feeling about your learning? Press the button that is beside this sentence.
I feel...
Now, record your ideas about your feelings using a voice recorder, speech-to-text, or writing tool.