Measurement 3.3
Using Measurement Tools
Using Measurement Tools
ANALYZE: Broken Ruler Task
ANALYZE: Broken Ruler Task
Perhaps no task better illustrates the challenges students have in understanding measurement and measurement tools than the Broken Ruler Task.
Perhaps no task better illustrates the challenges students have in understanding measurement and measurement tools than the Broken Ruler Task.
Consistently and around the world, research shows that a significant percentage of students grades 2-8 and higher are unable to correctly use a ruler that doesn't begin at zero, results that are substantiated on the Junior EQAO Assessment.
Consistently and around the world, research shows that a significant percentage of students grades 2-8 and higher are unable to correctly use a ruler that doesn't begin at zero, results that are substantiated on the Junior EQAO Assessment.
Discuss
Discuss
Look at the work samples below from Kirri, Danielle and Jimmy. Based on these samples, what key ideas do students need to know about using a scale? What pedagogical moves would you make to help these students advance?
Look at the work samples below from Kirri, Danielle and Jimmy. Based on these samples, what key ideas do students need to know about using a scale? What pedagogical moves would you make to help these students advance?
Share your thinking in the Collaborative Notebook.
Share your thinking in the Collaborative Notebook.
Broken Ruler Task
How long is the leaf? Explain your answer.
Broken Ruler | Work Samples
Broken Ruler | Work Samples
Interesting in Learning More?
Interesting in Learning More?
Read this Case Study of how one teacher develops the concept of length with her Grade 4 students in order to overcome misconceptions revealed by the Broken Ruler Task. Discuss the tasks and the conversation prompts she used to draw out the important mathematics and consider what you might do to help your students build greater understanding of rulers.
Read this Case Study of how one teacher develops the concept of length with her Grade 4 students in order to overcome misconceptions revealed by the Broken Ruler Task. Discuss the tasks and the conversation prompts she used to draw out the important mathematics and consider what you might do to help your students build greater understanding of rulers.
ANALYZE: Weight Scales
ANALYZE: Weight Scales
Look at the weight scales below.
Look at the weight scales below.
Talk about makes these scales so difficult to read, What do students need to know in order to use these scales correctly? How would you help students develop skills in reading these scales? Talk about the relationship between Number Sense and Measurement -- their connections, their uniqueness and the ways that can work together to deepen mathematical understanding.
Talk about makes these scales so difficult to read, What do students need to know in order to use these scales correctly? How would you help students develop skills in reading these scales? Talk about the relationship between Number Sense and Measurement -- their connections, their uniqueness and the ways that can work together to deepen mathematical understanding.
CONSOLIDATE and SHARE
CONSOLIDATE and SHARE
Read and Discuss
Read and Discuss
Read through this short article on calibrated scales. Compare and contrast your thinking with the article.
Read through this short article on calibrated scales. Compare and contrast your thinking with the article.
What aspects are in common. Are there any other ideas that you want to add to your thinking?
What aspects are in common. Are there any other ideas that you want to add to your thinking?
If so, add them to the Collaborative Notebook.
If so, add them to the Collaborative Notebook.
