PORTFOLIO ASSESSMENT:
Term 4 Grade 6 Mathematics
Discipline Based Learning
Interdisciplinary Learning
Physical, Personal and
Social Learning
Mathematics - Number &
Algebra
Thinking Processes - Reflection,
Evaluation and Metacognition
Personal Learning –
Managing Personal
Learning
Learning Experience
Throughout term 4 the students have explored ‘bike gear ratios’ and their applications.
In this task the students were asked to consider the easiest gear and hardest gear on a
bike. The students were then given the number of teeth on each chain wheel and
sprocket as well as the diameter of the wheels. Following that they were asked to
calculate: the ratio of teeth on the chain wheel to the sprocket; revolutions of the rear
wheel and the roll out distance.
.Through this activity you have demonstrated that you can:
No
Evidence
Some
Evidence
Identify components
X
Compare two units as a ratio
X
Simplify ratios
X
Convert ratio to a fraction
X
Convert a fraction to a decimal to represent revolutions of a
wheel
X
Calculate the circumference of a bike wheel
X
Calculate the roll out distance of a bike
X
Solve worded problems with evidence of working out
Strong
Evidence
X
YOUR NEXT STEP IS TO:





Read worded problems carefully and apply strategies
Factorise to simplify ratios to their lowest form
Develop your number sense to justify the value of numbers
Revisit key terms and definitions
Revisit circumference= 3.14 X d
Teacher Comment:
Well done Zoe! You have demonstrated that you have some understanding about bike
gear ratios. You have shown that you are developing a solid understanding of simplifying
and converting ratios into simple fractions to find out the number of revolutions in a
crank rotation. Nice to see you have recorded your working out even though you have
used a calculator to assist you. Great effort.
PORTFOLIO ASSESSMENT:
Term 4 Grade 6 Mathematics
Discipline Based Learning
Interdisciplinary Learning
Physical, Personal and
Social Learning
Mathematics - Number &
Algebra
Thinking Processes - Reflection,
Evaluation and Metacognition
Personal Learning –
Managing Personal
Learning
Learning Experience
Throughout term 4 the students have explored ‘bike gear ratios’ and their applications.
In this task the students were asked to consider the easiest gear and hardest gear on a
bike. The students were then given the number of teeth on each chain wheel and
sprocket as well as the diameter of the wheels. Following that they were asked to
calculate: the ratio of teeth on the chain wheel to the sprocket; revolutions of the rear
wheel and the roll out distance.
.Through this activity you have demonstrated that you can:
No
Evidence
Some
Evidence
Strong
Evidence
X
Identify components
Compare two units as a ratio
X
Simplify ratios
X
X
Convert ratio to a fraction
Convert a fraction to a decimal to represent revolutions of a
wheel
X
Calculate the circumference of a bike wheel
X
Calculate the roll out distance of a bike
X
Solve worded problems with evidence of working out
X
YOUR NEXT STEP IS TO:





Read worded problems carefully and apply strategies
Factorise to simplify ratios to their lowest form
Develop your number sense to justify the value of numbers
Revisit key terms and definitions
Revisit circumference= 3.14 X d
Teacher Comment:
Great effort, Michael! You have shown that you understand bike gear ratio and beginning
to acquire a solid grasp on calculating the roll out distance of a bike. You have
demonstrated that you can simplify ratios and convert them into a fraction. You have
also shown that you can find the circumference of a wheel. Make sure to show all
working out in the future. Well done.
PORTFOLIO ASSESSMENT:
Term 4 Grade 6 Mathematics
Discipline Based Learning
Interdisciplinary Learning
Physical, Personal and
Social Learning
Mathematics - Number &
Algebra
Thinking Processes - Reflection,
Evaluation and Metacognition
Personal Learning –
Managing Personal
Learning
Learning Experience
Throughout term 4 the students have explored ‘bike gear ratios’ and their applications.
In this task the students were asked to consider the easiest gear and hardest gear on a
bike. The students were then given the number of teeth on each chain wheel and
sprocket as well as the diameter of the wheels. Following that they were asked to
calculate: the ratio of teeth on the chain wheel to the sprocket; revolutions of the rear
wheel and the roll out distance.
.Through this activity you have demonstrated that you can:
No
Evidence
Some
Evidence
Strong
Evidence
Identify components
X
Compare two units as a ratio
X
Simplify ratios
X
Convert ratio to a fraction
X
Convert a fraction to a decimal to represent revolutions of a
wheel
X
Calculate the circumference of a bike wheel
X
Calculate the roll out distance of a bike
X
Solve worded problems with evidence of working out
X
YOUR NEXT STEP IS TO:





Read worded problems carefully and apply strategies
Factorise to simplify ratios to their lowest form
Develop your number sense to justify the value of numbers
Revisit key terms and definitions
Revisit circumference= 3.14 X d
Teacher Comment:
Good job Chiara! .You have clearly demonstrated that you understand how to solve this
complex worded problem. Great to see that you have recorded all of your working out
even though you have used a calculator to assist you. Your table used to simplify
demonstrates your sound understanding of the process. Well done.