Sample work Science and Technology K–6 Stage 2: Investigating scientifically

Description of activity

Students independently identify a question to be tested, develop a design, plan and conduct the investigation. They draw a conclusion as to whether their prediction is supported by the results of their test.

Instructions:

1. Students identify a question which can be tested in an investigation.
2. They develop a design idea for a fair test for the investigation.
3. They make a prediction of the possible results of the investigation.
4. Students record a plan of the investigation to test their prediction, including the equipment they will use and how they will make accurate measurements.
5. They select and use safely appropriate equipment to conduct the investigation.
6. Students collect data, record and analyse the results.
7. Students draw a conclusion as to whether their prediction is supported, based on the results.

Suggested materials

Paper, pencils, ice cubes, non toxic dyes, plastic containers, plastic spoons/paddle-pop sticks, ruler, stopwatch, seeds, strips of fabric

Prior learning

This task on scientific investigation is a small part of a Science and Technology unit that is integrated with learning in Mathematics. Students are provided with opportunities to apply knowledge, understanding and skills developed through related aspects of the Working Mathematically and Measurement strands of the Mathematics K-6 syllabus to real world situations. They identify questions relevant to and of interest to them and through engaging in a variety of first-hand experiences in investigating, designing, producing and effectively using technology they extend their understanding of how measurement can be used in the process of investigating scientifically. In this activity students work independently and use their ideas and understanding of observing, questioning, predicting, testing, collecting, recording, analysing data and drawing conclusions in designing and conducting an investigation.

Criteria for assessing learning

Students will be assessed on their ability to:

• Independently identify a question to be tested.
• Design and record an investigation that is a fair test for the question.
• Predict the results of the test.
• Select and safely use a range of appropriate equipment in the investigation.
• Collect accurate data, record and analyse results.
• Draw a conclusion based on the results.

Work Sample Assessment

Casey

Casey has demonstrated a high level of competence in planning and conducting a scientific investigation. A question to be tested has been identified and the test results have been predicted. An appropriate range of equipment has been selected and safely used. Data has been accurately collected and recorded using a table but no quantities have been listed. The results have been analysed and conclusions have been drawn from these. This work sample demonstrates characteristics of work typically produced by a student performing at grade B standard at the end of Stage 2.

Jordan

Jordan has demonstrated an adequate level of competence in planning and conducting a scientific investigation. A sound understanding of fair testing is evident. Data has been collected and the results have been analysed. Appropriate equipment has been used but there is a need for greater detail in the recording of results and the final explanation. This work sample demonstrates characteristics of work typically produced by a student performing at grade C standard at the end of Stage 2.

Morgan

Morgan has demonstrated an adequate level of competence in planning and conducting a scientific investigation. Most elements of the scientific process have been included but they have been incorrectly sequenced. A question has been identified, a prediction has been made, data has been collected, and the results have been recorded. No diagrams have been included and there is no independent explanation or analysis. This work sample demonstrates characteristics of work typically produced by a student performing at grade C standard at the end of Stage 2.