The Continuous Assessment Learning Activity (CALA) is a learning activity or assessment that requires learners to perform, demonstrate their knowledge, understanding and proficiency.
CALA Title: Safety On Our Roads
Background
Your school is on a busy road and teachers are worried about the safety of pupils crossing the road. Your teacher has decided that it would be helpful to survey the number of vehicles that pass by the school around the beginning and end of the school day to determine when traffic control is needed.
A survey will be conducted by small groups of pupils for 15-minute time slots between 7.00am and 8.00am, and between 3.30pm and 4.30pm, from Monday to Friday. Results from each group will be averaged and displayed in a table made by your teacher.
CALA objectives
To help decide when traffic control is needed answer these four items, making use of the data in the table as needed.
Doing the maths
Calculate the average number of vehicles passing the school in the morning from 7.00am to 8.00am and in the afternoon from 3.30pm to 4.30pm.
Draw an appropriate graph to show this information. Explain how did you decide which graph to use?
Traffic control will only be provided if the number of vehicles exceeds in a 30 minute time period. Which times is traffic control needed? Use the data to decide and show your working
At another school, five pupils collected similar data from 7.30am to 7.45am. Their average was 12 cars. Another pupil said he also collected data at the same time. When his total was added to the group’s, the average became 16 cars. What was his total?
Show your working.
Write a brief report for the Principal outlining the need for extra traffic control outside the school. Make use of the data in the table to justify your recommendations. How you will be assessed
Your answers and working on all four items will be assessed. Achievement standards specific to this CALA will be provided so that you are aware of the assessment criteria.
Some CALA “tips”
Remember that you are trying to show your teacher your highest level of understanding of this topic, so give clear answers and detailed working when requested. You may want to include graphs and tables in your answers.
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