Introducing converting unit rates (groups of 4) (10 minutes)
- On whiteboards, students brainstorm how they might convert km/hr to m/s using their prior knowledge of converting units and applying this knowledge to unit rates
- Questions provided for students to think about to help them derive the technique:
- What does the '/' mean in terms of rates? How can this be related to the operation of division?
- Can you write 3km/hr in another form?
- The teacher will ask groups to present their derived method of converting unit rates and get them to explain their thought process and rational for their method
Teacher questioning/prompts
- Which aspects of prior knowledge of ratios and rates do you think will help you derive a method for converting unit rates?
- Can you draw a graph to help you convert unit rates?
Activity 1 (individual): Converting unit rates questions (35 minutes)
- Show students this video which demonstrates how to convert between km/hr to m/s
- Students check the way the video has explained the process with the method that they derived. Students assess the method shown in the video and write down a list of modifications that can be made to their own method and the video method
- Students use their laptops to access the online activity and apply the method they have derived (fluency)
Teacher questioning/prompts
- What improvements can be made to your method?
- What improvements can be made to the video method?
Lesson conclusion: Exit slip (5 minutes)
- Students receive an exit slip which they complete and hand in to the teacher before leaving the class (AFL)