4E Gradient and direct proportion
LEARNING INTENTIONS:
- To understand what it means for two variables to be directly proportional - To know the form of the equation that links two variables that are directly proportional - To understand that the gradient of the graph equals the rate of change of one variable with respect to the other - To be able to use a constant rate of change in a word problem to sketch a graph and form a linear rule SUCCESS CRITERIA: I can work with direct proportion. e.g. It takes 1010 minutes to fill a bath with 6060 litres. Draw a graph of volume (𝑉 litres) vs time (𝑡 minutes) for 0⩽𝑡⩽100⩽t⩽10. Find the gradient of the graph and a rule for 𝑉V. Use the rule to find the time for the bathtub to fill to 4545 litres. CHECKLIST QUESTIONS: Ex 4E Essential Maths - pg. 248 Understanding: Questions 1 Fluency: Questions 3, 4 Problem Solving: Question 7, 9, 10 |
ACTIVITY 1:
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CLASS ACTIVITY: REAL LIFE LINEAR RELATIONSHIPS
To be completed back at school.
To be completed back at school.
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